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	<title>I, Cringely &#187; Three Mile Island</title>
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	<description>Cringely on technology</description>
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	<itunes:summary>For eight years from 1987-95, Robert X. Cringely wrote the Notes From the Field column in InfoWorld, a weekly computer trade newspaper. He is also the author of the best-selling book Accidental Empires: How the Boys of Silicon Valley Make Their Millions, Battle Foreign Competition, and Still Can’t Get a Date.</itunes:summary>
	<itunes:author>Robert X. Cringely</itunes:author>
	<itunes:explicit>no</itunes:explicit>
	<itunes:image href="http://www.cringely.com/podcast/bobitunes.jpg" />
	<itunes:owner>
		<itunes:name>Robert X. Cringely</itunes:name>
		<itunes:email>bob@cringely.com</itunes:email>
	</itunes:owner>
	<managingEditor>bob@cringely.com (Robert X. Cringely)</managingEditor>
	<itunes:subtitle>Cringely on Technology</itunes:subtitle>
	<itunes:keywords>Cringely, Steve Jobs, LG, Netflix, Roku, HDTV, metal foil drive</itunes:keywords>
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		<title>I, Cringely &#187; Three Mile Island</title>
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	<itunes:category text="Technology">
		<itunes:category text="Tech News" />
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		<item>
		<title>Plutonium is forever</title>
		<link>http://www.cringely.com/2011/03/plutonium-is-forever/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=plutonium-is-forever</link>
		<comments>http://www.cringely.com/2011/03/plutonium-is-forever/#comments</comments>
		<pubDate>Wed, 30 Mar 2011 14:28:11 +0000</pubDate>
		<dc:creator>Robert X. Cringely</dc:creator>
				<category><![CDATA[2011]]></category>
		<category><![CDATA[Fukushima nuclear accident]]></category>
		<category><![CDATA[General Electric]]></category>
		<category><![CDATA[General Public Utilities]]></category>
		<category><![CDATA[Startup America]]></category>
		<category><![CDATA[TEPCO]]></category>
		<category><![CDATA[Three Mile Island]]></category>
		<category><![CDATA[White House]]></category>

		<guid isPermaLink="false">http://www.cringely.com/?p=2676</guid>
		<description><![CDATA[I have been doing business in Japan for 20 years, consulting for big and small companies, speaking at conferences, writing for Japanese publications, and helping both American and Japanese companies do business with each other. For years I flew to Tokyo once a month, generally in my role as giver of bad news, which I [...]]]></description>
			<content:encoded><![CDATA[<p><img class="alignleft size-medium wp-image-2682" title="Tepco-announces-plutonium" src="http://www.cringely.com/wp-content/uploads/Tepco-announces-plutonium-300x180.jpg" alt="" width="300" height="180" />I have been doing business in Japan for 20 years, consulting for big and small companies, speaking at conferences, writing for Japanese publications, and helping both American and Japanese companies do business with each other. For years I flew to Tokyo once a month, generally in my role as giver of bad news, which I could get away with as an American. Throughout those 20 years I have been astounded by the energy and discipline of Japanese industry, <em>and</em> by its turgid impenetrability. For a country known for advanced technology, Japan is astoundingly resistant to outside ideas, as the current earthquake and nuclear crisis show yet again.</p>
<p>You’d think they’d <em>want</em> our help, and they do to a certain degree. But it’s like those people I meet on airplanes who find out what I do for a living and tell me they would really like to write a book: what they mean is that they would like to <em>have written</em> a book. The Japanese would like for us to have helped them &#8212; to gain the benefits of our assistance without the embarrassment of admitting they need help or the complications of arranging to accept it.</p>
<p>This lesson was learned to some extent during the Kobe earthquake of 1995 when Japan waited several days before even responding to international offers of assistance &#8212; days during which Japanese citizens were still dying under rubble. In Kobe what was on offer were mainly trained dog teams to sniff-out survivors. That part of the lesson was learned: when this earthquake happened, Japan was quick to accept such assistance and thousands of lives were probably saved as a result. But the Fukushima nuclear accident is a very different story.</p>
<p>In this nuclear accident the situation is complicated by an extra party &#8212; Tokyo Electric Power Company &#8212; with its corporate personality and internal agendas. TEPCO is embarrassed by this accident. Embarrassment, either corporate or personal, is a <em>huge</em> deal in Japan. It’s not like they can just give up their corporate face for a few weeks or months while necessary things get done. I saw a similar unwillingness to squarely face reality at General Public Utilities back at Three Mile Island in 1979. In both corporate cultures there was too much emphasis on political damage control &#8212; emphasis that often comes at the expense of good engineering.</p>
<p>If a nuclear plant manager is worried too much about his job he isn’t worried enough about his reactor.</p>
<p>TEPCO just this morning announced that four of the six Daiichi reactors can never be repaired. I wrote that right here less than 24 hours after the earthquake and tsunami before the emergency batteries had even run out. It was instantly obvious to even a moderately informed observer like me, yet why did TEPCO take two weeks to come to the same conclusion? Internal politics, which can only increase public danger.</p>
<p>But wait, there’s more! Now we have reports of water contaminated with plutonium at the plant and possible plutonium ground water contamination. Radioactive cesium and iodine are bad enough, though that water can be stored in pools for a few months while the radiation decays then carefully diluted for disposal. But plutonium contamination is <em>forever</em> &#8212; at least 10,000 years.</p>
<p>There are right now two plutonium remediation technologies on offer to the Japanese government and TEPCO that I know about &#8212; one from Russia and one from the USA. One approach uses nanotech and the other uses biotech but both are novel and unique. Both have been offered to the Japanese through government channels and in both cases the Japanese government or TEPCO have yet to respond.</p>
<p>I know about these technologies because the Russian one is represented by a friend of mine and the American one comes from a Startup America company so I took it straight to the White House myself.</p>
<p>I think it would be smart for TEPCO to adopt <em>both</em> technologies in case one works better than the other. But my sense is that if an answer <em>ever</em> comes from Japan it will be months from now and will probably be “no thanks.”</p>
<p>Think about this as you read about that plutonium-contaminated water, because it is going to be in the news for years to come. If only there had been a technology available to clean up that stuff early in the crisis, the pundits will say, lives could have been saved. There <em>was</em> such a technology available &#8212; two of them in fact.</p>
<p>Who’s embarrassed now?</p>
]]></content:encoded>
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		<slash:comments>83</slash:comments>
<enclosure url="http://www.cringely.com/podcast/20110330.mp3" length="668689" type="audio/mpeg" />
			<itunes:keywords>Fukushima nuclear accident,General Electric,General Public Utilities,Startup America,TEPCO,Three Mile Island,White House</itunes:keywords>
		<itunes:subtitle>I have been doing business in Japan for 20 years, consulting for big and small companies, speaking at conferences, writing for Japanese publications, and helping both American and Japanese companies do business with each other.</itunes:subtitle>
		<itunes:summary>(http://www.cringely.com/wp-content/uploads/Tepco-announces-plutonium-300x180.jpg)I have been doing business in Japan for 20 years, consulting for big and small companies, speaking at conferences, writing for Japanese publications, and helping both American and Japanese companies do business with each other. For years I flew to Tokyo once a month, generally in my role as giver of bad news, which I could get away with as an American. Throughout those 20 years I have been astounded by the energy and discipline of Japanese industry, and by its turgid impenetrability. For a country known for advanced technology, Japan is astoundingly resistant to outside ideas, as the current earthquake and nuclear crisis show yet again.

You’d think they’d want our help, and they do to a certain degree. But it’s like those people I meet on airplanes who find out what I do for a living and tell me they would really like to write a book: what they mean is that they would like to have written a book. The Japanese would like for us to have helped them -- to gain the benefits of our assistance without the embarrassment of admitting they need help or the complications of arranging to accept it.

This lesson was learned to some extent during the Kobe earthquake of 1995 when Japan waited several days before even responding to international offers of assistance -- days during which Japanese citizens were still dying under rubble. In Kobe what was on offer were mainly trained dog teams to sniff-out survivors. That part of the lesson was learned: when this earthquake happened, Japan was quick to accept such assistance and thousands of lives were probably saved as a result. But the Fukushima nuclear accident is a very different story.

In this nuclear accident the situation is complicated by an extra party -- Tokyo Electric Power Company -- with its corporate personality and internal agendas. TEPCO is embarrassed by this accident. Embarrassment, either corporate or personal, is a huge deal in Japan. It’s not like they can just give up their corporate face for a few weeks or months while necessary things get done. I saw a similar unwillingness to squarely face reality at General Public Utilities back at Three Mile Island in 1979. In both corporate cultures there was too much emphasis on political damage control -- emphasis that often comes at the expense of good engineering.

If a nuclear plant manager is worried too much about his job he isn’t worried enough about his reactor.

TEPCO just this morning announced that four of the six Daiichi reactors can never be repaired. I wrote that right here less than 24 hours after the earthquake and tsunami before the emergency batteries had even run out. It was instantly obvious to even a moderately informed observer like me, yet why did TEPCO take two weeks to come to the same conclusion? Internal politics, which can only increase public danger.

But wait, there’s more! Now we have reports of water contaminated with plutonium at the plant and possible plutonium ground water contamination. Radioactive cesium and iodine are bad enough, though that water can be stored in pools for a few months while the radiation decays then carefully diluted for disposal. But plutonium contamination is forever -- at least 10,000 years.

There are right now two plutonium remediation technologies on offer to the Japanese government and TEPCO that I know about -- one from Russia and one from the USA. One approach uses nanotech and the other uses biotech but both are novel and unique. Both have been offered to the Japanese through government channels and in both cases the Japanese government or TEPCO have yet to respond.

I know about these technologies because the Russian one is represented by a friend of mine and the American one comes from a Startup America company so I took it straight to the White House myself.

I think it would be smart for TEPCO to adopt both technologies in case one works better than the other.</itunes:summary>
		<itunes:author>Robert X. Cringely</itunes:author>
		<itunes:explicit>no</itunes:explicit>
		<itunes:duration>1:24</itunes:duration>
	</item>
		<item>
		<title>Flea powder may be saving lives in Japan</title>
		<link>http://www.cringely.com/2011/03/flea-powder-may-be-saving-lives-in-japan/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=flea-powder-may-be-saving-lives-in-japan</link>
		<comments>http://www.cringely.com/2011/03/flea-powder-may-be-saving-lives-in-japan/#comments</comments>
		<pubDate>Sat, 12 Mar 2011 02:54:18 +0000</pubDate>
		<dc:creator>Robert X. Cringely</dc:creator>
				<category><![CDATA[2011]]></category>
		<category><![CDATA[boiling water reactors]]></category>
		<category><![CDATA[earthquake]]></category>
		<category><![CDATA[Hillary Clinton]]></category>
		<category><![CDATA[nuclear accident]]></category>
		<category><![CDATA[sodium polyborate]]></category>
		<category><![CDATA[Three Mile Island]]></category>
		<category><![CDATA[Tokyo Electric Power Co.]]></category>

		<guid isPermaLink="false">http://www.cringely.com/?p=2587</guid>
		<description><![CDATA[There’s a 40 year-old nuclear reactor cooling-down right now in Japan following the big earthquake in that country. Actually there are 11 such reactors cooling-down, automatically brought offline by the 8.9 temblor, but one of those reactors at the Fukushima Daiichi generating plant is not going gracefully and 3000 people have been moved from their [...]]]></description>
			<content:encoded><![CDATA[<p><a href="http://www.cringely.com/wp-content/uploads/reactor.jpg"><img src="http://www.cringely.com/wp-content/uploads/reactor-300x210.jpg" alt="" title="Fukushima nuclear plant" width="200" height="140" class="alignleft size-medium wp-image-2588" /></a>There’s a 40 year-old nuclear reactor cooling-down right now in Japan following the big earthquake in that country. Actually there are 11 such reactors cooling-down, automatically brought offline by the 8.9 temblor, but one of those reactors at the Fukushima Daiichi generating plant is not going gracefully and 3000 people have been moved from their homes as a precaution.</p>
<p>Good idea.</p>
<p>I worked as an investigator for the Presidential Commission on the Accident at Three Mile Island, 32 years ago, and a few months studying the plumbing TMI’s Unit 2, which is actually younger than the errant Japanese reactor, gives me a very healthy respect for the danger in Japan.</p>
<p>That Japanese reactor shut down automatically within seconds of the earthquake, the idea being that dropping the thermal load (stopping the nuclear reaction and cooling-down the reactor) would minimize risk overall from a huge plumbing system that was likely compromised and vulnerable. Radiation and the passage of time conspire to make pipes brittle and aftershocks make brittle pipes break. Not good.</p>
<p>The 10 other reactors behaved as expected, but this unit didn’t. Once the reactor was no longer making steam to drive a turbine and generate electricity the plant was supposed to fire-up diesel generators to make the power needed to keep coolant pumps running. Only the diesels wouldn’t start. It can take up to seven days, you see, to get such a reactor down to where it can survive without circulating coolant. With the diesels out (under water perhaps?) the plant relied on batteries to run the pumps &#8212; batteries good for only eight hours.</p>
<p>Tokyo Electric Power Company isn’t saying much. Utilities tend not to and Japanese utilities are notoriously secretive. But we got a clue to what’s happening from U. S. Secretary of State Hillary Clinton, of all people, who remarked that the U. S. military was delivering “coolant” to the stricken reactor.</p>
<p>“Coolant?” wondered aloud all the CNN and Fox News nuclear experts looking for a lede for their stories. “What is she talking about, coolant?” This is a boiling water reactor and the coolant is water. The U. S. Air Force isn’t needed to export water to Japan.</p>
<p>This shows the limits of cable news experts and maybe experts in general, because Hillary isn’t the kind of person to choose the wrong words. She said “coolant” and she meant “coolant.” Though she may not have known she was saying so, she also meant the reactor was dead and will never be restarted.</p>
<p>A boiling water reactor does just what it sounds like &#8212; it boils water to make steam that drives a turbine generator. This is as opposed to a pressurized water reactor that uses the nuclear reaction to heat a coolant that never really boils because it is under high pressure, then sends that coolant through a heat exchanger which heats water to make steam to drive the generator. Boiling water reactors are simpler, cheaper, but generally aren’t made anymore because they are perceived as being less safe. That’s because the exotic coolant in the pressurized water reactor can contain boric acid which absorbs neutrons and can help (or totally) control the nuclear reaction. You can’t use boric acid or any other soluble boron-laced neutron absorbers in a boiling water reactor because doing so would contaminate both the cooling system and the environment.</p>
<p>That’s why the experts didn’t expect it because they are still thinking of how the plant can be saved, but it can’t be.</p>
<p>Though the boiling water reactor has already been turned off by inserting neutron-absorbing control rods all the way into the core, adding boric acid or, more likely, sodium polyborate would turn the reactor off-er &#8212; more off than off &#8212; which could come in really handy in the event of a subsequent coolant loss, which reportedly has already happened. But that’s a $1 billion kill switch that most experts wouldn’t think to pull.</p>
<p>I’m guessing the US Navy delivered a load of sodium polyborate from some nuclear aircraft carrier reactor supply room in the Pacific Fleet. Its use indicates that the nuclear threat is even worse than presently being portrayed in the news.  Tokyo Electric Power Company has probably given-up any hope of keeping those cooling pumps on after the batteries fail. Eventually they&#8217;ll vent the now boron-laced coolant to the atmosphere to keep containment pressures under control.</p>
<p>Sodium polyborate, by the way, is something you might use around the house, since it is the active ingredient in most flea and tick treatments.</p>
<p>An earthquake with such loss of life is bad enough, but Japan has also just lost 20 percent of its electric generating capacity. And I’ll go out on a limb here and predict that none of those 11 reactors will re-enter service again, they’ve been so compromised.</p>
]]></content:encoded>
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		<slash:comments>103</slash:comments>
		</item>
		<item>
		<title>Three Mile Island Memories</title>
		<link>http://www.cringely.com/2009/03/three-mile-island-memories/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=three-mile-island-memories</link>
		<comments>http://www.cringely.com/2009/03/three-mile-island-memories/#comments</comments>
		<pubDate>Tue, 31 Mar 2009 23:55:21 +0000</pubDate>
		<dc:creator>Robert X. Cringely</dc:creator>
				<category><![CDATA[Uncategorized]]></category>
		<category><![CDATA[cringely]]></category>
		<category><![CDATA[Jimmy Carter]]></category>
		<category><![CDATA[nuclear power]]></category>
		<category><![CDATA[technology]]></category>
		<category><![CDATA[Three Mile Island]]></category>

		<guid isPermaLink="false">http://www.cringely.com/?p=351</guid>
		<description><![CDATA[This past weekend marked the 30th anniversary of the nuclear accident at Three Mile Island.  If you are old enough you may remember where you were at that time and what it was like.  I remember VERY well because I was on my way to the crippled plant near Harrisburg, Pennsylvania.  Our President at the [...]]]></description>
			<content:encoded><![CDATA[<p><img class="alignleft size-medium wp-image-352" title="tmi2" src="http://www.cringely.com/wp-content/uploads/tmi2-300x300.jpg" alt="tmi2" width="300" height="300" />This past weekend marked the 30th anniversary of the nuclear accident at Three Mile Island.  If you are old enough you may remember where you were at that time and what it was like.  I remember VERY well because I was on my way to the crippled plant near Harrisburg, Pennsylvania.  Our President at the time, Jimmy Carter, was also a micro-manager and a former nuclear engineer: he wanted his own eyes and ears on the scene.  Our little group eventually coalesced into the Presidental Commission on the Accident at Three Mile Island, led by Dartmouth College president John Kemeny, who was also the co-author of BASIC.</p>
<p>The lessons of Three Mile Island have been, for the most part, forgotten.  The nuclear industry changed and improved somewhat, but the deep understanding of what went wrong was lost on the public in general and the real lessons that we could have learned as a society were, too.  The financial mess we are experiencing right now isn&#8217;t all that different from Three Mile Island.  If we&#8217;d taken better to heart the true lessons of TMI we might not be in our present jam.</p>
<p>I spent a year of my life coming to understand TMI and even wrote a book about it, now long out of print.  I was there.</p>
<p>There was a partial nuclear core meltdown at TMI.  We all knew what that meant because, ironically, <em>The China Syndrome</em>, had just swept through American movie theaters six weeks before.  Years later there was a much more severe accident at the Chernobyl nuclear power plant in the Soviet Union.  Some people argue that TMI was actually worse than Chernobyl in terms of the actual core damage.  I don&#8217;t know.  There&#8217;s no doubt that Chernobyl killed a lot of people and TMI didn&#8217;t.  The difference was that TMI had a concrete containment vessel and Chernobyl had none.  Building nuclear power plants without containment vessels was insane and Chernobyl proved that.</p>
<p>Looking back at the accident with the benefit of knowing what it took to clean it up and what the workers found when they were finally able to send robots inside the containment, the TMI accident was very bad indeed.  There were pressure spikes during the accident that would have cracked an average containment vessel, releasing radioactive gases into the atmosphere.  Fortunately the Unit 2 containment wasn&#8217;t average.  TMI-2 was built on the final approach path to Harrisburg International Airport, a former U.S. Air Force base, and was therefore beefed-up specifically to withstand the impact of a B-52 hitting the structure at 200 knots.  A normal containment would have been breached.</p>
<p>TMI wasn&#8217;t caused by a computer failure but the accident was made vastly worse by an error of computer design.  Specifically, TMI-2 had a terrible user interface.</p>
<p>We had a confluence of bad design decisions at TMI, some of them made by the U.S. Congress.  U.S. law specifically prohibited using computers to directly control nuclear power plants.  Men would do that and nearly all of those men would be former nuclear reactor operators from the U.S. Navy.  Computers could be used to monitor the reactor and in fact it would probably have been close to impossible to monitor it without the help of computers.  There were just too darned many valves and sensors for any team of humans to keep track of reliably, 24/7.</p>
<p>So the computer (there was one) monitored the plant and raised an alarm if specific parameters changed.  Then a guy would flip a switch to open or close some valve, solving the problem.</p>
<p>Here&#8217;s how it was supposed to work.  Something went wrong.  The computer noticed what went wrong, set off audible and visual alarms, then sent a description of the problem to a line printer in the control room.  The operator would read the print-out, check the trouble code in one of many manuals, then make the adjustment specified in the manual.  Simple, eh?</p>
<p>Too simple, it turned out.</p>
<p>What happened at Unit 2 was a little more complex.  A cascading series of events caused the computer to notice SEVEN HUNDRED things wrong in the first few minutes of the accident.  The ONE audible alarm started ringing and stayed ringing continuously until someone turned it off as useless.  The ONE visual alarm was activated and blinked for days, indicating nothing useful at all.  The line printer queue quickly contained 700 error reports followed by several thousand error report updates and corrections.  The printer queue was almost instantly hours behind, so the operators knew they had a problem (700 problems actually, though they couldn&#8217;t know that) but had no idea what the problem was.</p>
<p>So they guessed.</p>
<p>Not good.</p>
<p>U.S. Navy reactor operators, the sort who served under Jimmy Carter in the 1950s, were selected primarily for their temperament.  This was a nuclear device, remember, so having trustworthy operators was most important. Besides, their Navy job – as at TMI – was to follow the manual.  All knowledge was inside the book.  So knowing the book was everything.  Unfortunately knowing the book isn&#8217;t the same as knowing the reactor.  This approach was extended to most civilian U.S. reactors, where knowing the book meant passing the test on the book NOT really understanding the guts of the machine.  Civilian reactor operator training in those days was nearly all about how to pass the test, not how to operate the reactor.</p>
<p>So when a real accident happened the operators weren&#8217;t prepared to handle it.  Their superiors at General Public Utilities weren&#8217;t prepared to handle it, either.  Nor were the experts at the Nuclear Regulatory Commission.  And don&#8217;t even get me started about FEMA.  The outcome of Hurricane Katrina was no surprise to me.</p>
<p>Every level of command waited too long to ask for help at TMI.  Sometimes this was because they thought they were on top of the situation, but more often it was to avoid embarrassment or – in the case of General Public Utilities – to avoid hurting the stock price.  The FEMA guys were just plain stupid.</p>
<p>Nobody died, eventually the reactor was brought under something like control, and a lot of lessons were learned in the process.  Reactor operators learned better how their reactors worked, for one.  The NRC generally gave up the job of promoting atomic power that had been its primary calling as the old Atomic Energy Commission, for another.  Reactor control rooms everywhere were dramatically improved and line printers banished as interface devices.  And for the next 29 years we didn&#8217;t build another nuclear power plant, leaving that mainly to the French and the Japanese.</p>
<p>Now nuclear energy can be mighty dangerous and is not something to be messed with lightly, but another irony in this story is that nuclear power is actually pretty simple compared to many other industrial processes.  The average chemical plant or oil refinery is vastly more complex than a nuclear power plant.  The nuke plant heats water to run a steam turbine while a chemical plant can make thousands of complex products out of dozens of feedstocks.  Their process control was totally automated 30 years ago and had an amazing level safety and interlock systems.  A lot of effort was put into the management of chemical plant startup, shutdown, and maintenance.  The chemical plant control system was designed to force the highest safety. So when manufacturing engineers from chemical plants looked at TMI, they were shocked to see the low-tech manner in which the reactors were controlled and monitored.  To the chemical engineers it looked like an accident waiting to happen.</p>
<p>The folks at TMI did not really know how to manage the technology of a nuclear power plant, and that led to a huge mess.  The same thing has now happened to our economy.  Congress changed the banking and mortgage lending rules without regard to their purpose.  Many firms bought derivative securities without the slightest thought to the math behind them or the risk they were incurring.  Nuclear power plants run on a chain reaction process of atomic decay.  Our government and investment community created a chain reaction of economic decay.</p>
<p>Chemical plants were better designed than nuclear power plants in part because Congress did not legislate how the chemical industry designed their plants.  But more importantly most chemical firms of that era had CEO&#8217;s with engineering degrees.  They had respect for the technology and the risk of misusing it.  But that doesn&#8217;t make the chemical industry blameless.  With the off-shoring of manufacturing a lot of chemical production is now being done in places where there is little respect for the dangers of technology.  The chemical industry&#8217;s TMI was Bhopal.  There will be more Bhopal&#8217;s coming because those companies are now being managed by bean counters, not engineers.</p>
<p>There is a place for nuclear power in our energy future.  I say this not as a particular nuclear advocate but as a realist.  The end of the Cold War has left us with a legacy of weapons grade nuclear materials that must be dealt with.  Thanks to the 1950s we&#8217;re stuck with all the issues of storing this stuff no matter what Obama or any other U.S. President does.  It just makes sense to me to take this stuff that used to be bombs and degrade it into something that can no longer make bombs but, oh by the way, can power millions of homes with no CO2 emissions.  It seems like making lemonade to me.  Yes, there are other renewable power sources that are even better than nuclear, but I seriously doubt whether they will add up to enough total watts in the time available.  We&#8217;ll need all of them.</p>
<p>Just as we neglected the economy for the last decade or more, we have also neglected nuclear energy.  We don&#8217;t have a national storage system for spent fuel.  We don&#8217;t have a spent fuel recycling process.  We don&#8217;t have a standard national reactor design.  We add incredible costs to power plants for an amazing list of things, many of which contribute nothing.</p>
<p>Life doesn&#8217;t get simpler, it gets more complex.  TMI led us to repudiate nuclear power as a nation – something in the long run we probably can&#8217;t afford to do.  We just have to find ways to manage technology – all technologies – more responsibly.  Sadly, we tend these days to put the wrong people in charge.</p>
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<enclosure url="http://www.cringely.com/podcast/20090331.mp3" length="2395100" type="audio/mpeg" />
			<itunes:keywords>Three Mile Island, nuclear power</itunes:keywords>
		<itunes:subtitle>This past weekend marked the 30th anniversary of the nuclear accident at Three Mile Island.  If you are old enough you may remember where you were at that time and what it was like.  I remember VERY well because I was on my way to the crippled plant ne...</itunes:subtitle>
		<itunes:summary>(http://www.cringely.com/wp-content/uploads/tmi2-300x300.jpg)This past weekend marked the 30th anniversary of the nuclear accident at Three Mile Island.  If you are old enough you may remember where you were at that time and what it was like.  I remember VERY well because I was on my way to the crippled plant near Harrisburg, Pennsylvania.  Our President at the time, Jimmy Carter, was also a micro-manager and a former nuclear engineer: he wanted his own eyes and ears on the scene.  Our little group eventually coalesced into the Presidental Commission on the Accident at Three Mile Island, led by Dartmouth College president John Kemeny, who was also the co-author of BASIC.

The lessons of Three Mile Island have been, for the most part, forgotten.  The nuclear industry changed and improved somewhat, but the deep understanding of what went wrong was lost on the public in general and the real lessons that we could have learned as a society were, too.  The financial mess we are experiencing right now isn&#039;t all that different from Three Mile Island.  If we&#039;d taken better to heart the true lessons of TMI we might not be in our present jam.

I spent a year of my life coming to understand TMI and even wrote a book about it, now long out of print.  I was there.

There was a partial nuclear core meltdown at TMI.  We all knew what that meant because, ironically, The China Syndrome, had just swept through American movie theaters six weeks before.  Years later there was a much more severe accident at the Chernobyl nuclear power plant in the Soviet Union.  Some people argue that TMI was actually worse than Chernobyl in terms of the actual core damage.  I don&#039;t know.  There&#039;s no doubt that Chernobyl killed a lot of people and TMI didn&#039;t.  The difference was that TMI had a concrete containment vessel and Chernobyl had none.  Building nuclear power plants without containment vessels was insane and Chernobyl proved that.

Looking back at the accident with the benefit of knowing what it took to clean it up and what the workers found when they were finally able to send robots inside the containment, the TMI accident was very bad indeed.  There were pressure spikes during the accident that would have cracked an average containment vessel, releasing radioactive gases into the atmosphere.  Fortunately the Unit 2 containment wasn&#039;t average.  TMI-2 was built on the final approach path to Harrisburg International Airport, a former U.S. Air Force base, and was therefore beefed-up specifically to withstand the impact of a B-52 hitting the structure at 200 knots.  A normal containment would have been breached.

TMI wasn&#039;t caused by a computer failure but the accident was made vastly worse by an error of computer design.  Specifically, TMI-2 had a terrible user interface.

We had a confluence of bad design decisions at TMI, some of them made by the U.S. Congress.  U.S. law specifically prohibited using computers to directly control nuclear power plants.  Men would do that and nearly all of those men would be former nuclear reactor operators from the U.S. Navy.  Computers could be used to monitor the reactor and in fact it would probably have been close to impossible to monitor it without the help of computers.  There were just too darned many valves and sensors for any team of humans to keep track of reliably, 24/7.

So the computer (there was one) monitored the plant and raised an alarm if specific parameters changed.  Then a guy would flip a switch to open or close some valve, solving the problem.

Here&#039;s how it was supposed to work.  Something went wrong.  The computer noticed what went wrong, set off audible and visual alarms, then sent a description of the problem to a line printer in the control room.  The operator would read the print-out, check the trouble code in one of many manuals, then make the adjustment specified in the manual.  Simple, eh?

Too simple, it turned out.

What happened at Unit 2 was a little more complex.</itunes:summary>
		<itunes:author>Robert X. Cringely</itunes:author>
		<itunes:explicit>no</itunes:explicit>
		<itunes:duration>9:58</itunes:duration>
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