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Nuclear Plant Accidents: Three Mile Island

, director, Nuclear Safety Project

Disaster by Design/Safety by Intent #42

Disaster by Design

At 4:00 am on March 28, 1979, workers at the Three Mile Island (TMI) nuclear plant near Harrisburg, Pennsylvania were preparing to restart the Unit 1 reactor from a refueling outage. The Unit 2 reactor was marking its first anniversary—exactly one year earlier, a nuclear chain reaction had been achieved for the first time. A series of events over the next 135 minutes would end Unit 2’s life and delay Unit 1’s restart for several years. Read more >

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US Missile Defense: In Worse Shape than You Thought

, senior scientist

Today we’re releasing a new report that looks at the US missile defense program nearly 15 years after the Bush administration began the push to deploy it. What we found was worse than we expected. Read more >

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Nuclear Plant Accidents: Fermi Unit 1

, director, Nuclear Safety Project

Disaster by Design/ Safety by Intent #40

Disaster by Design

Jorge Agustin Nicolás Ruiz de Santayana y Borrás, also known as George Santayana, wrote that “Those who cannot remember the past are condemned to repeat it.” Disaster by Design/Safety by Intent #39 described the partial meltdown of the reactor core at the Sodium Reactor Experiment (SRE) in California. Workers at the Fermi Unit 1 reactor in Michigan must have remembered this accident pretty well, since they duplicated almost every key aspect of it just seven years later. Read more >

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Analysis of North Korea’s Musudan Missile Test–Part 2

, co-director and senior scientist

In my previous post, I looked at what we could learn about North Korea’s Musudan (Hwasong-10) missile from the lofted flight it launched on June 21. In this post, I look at some other aspects of the test. Read more >

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