Latest Uncategorized Posts

Historic Treaty Makes Nuclear Weapons Illegal

, manager of strategic campaigns

Remember this day, July 7, 2017. Today, history was made at the United Nations and the nuclear status quo was put on notice and most of the world stood up and said simply, “Enough.” Read more >

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North Korea Appears to Launch Missile with 6,700 km Range

, co-director and senior scientist

Current reports of North Korea’s July 4 missile test say the missile had a range of “more that 930 km” (580 miles), and flew for 37 minutes (according to US Pacific Command).

A missile of that range would need to fly on a very highly lofted trajectory to have such a long flight time.

Assuming a range of 950 km, then a flight time of 37 minutes would require it to reach a maximum altitude of more than 2,800 km (1700 miles).

So if the reports are correct, that same missile could reach a maximum range of roughly 6,700 km (4,160 miles) on a standard trajectory.

That range would not be enough to reach the lower 48 states or the large islands of Hawaii, but would allow it to reach all of Alaska.

There is not enough information yet to determine whether this launch could be done with a modified version of the Hwasong-12 missile that was launched on May 14.

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The Nuclear Safety Value of “What If?”

, director, Nuclear Safety Project

Disaster by Design/ Safety by Intent #61

Safety by Intent

Picture a driver distracted by tuning the car’s radio or reading a very clever roadside billboard and unknowingly traveling through a stop sign without even slowing down. Due to good fortune, the driver neither hits another vehicle nor gets hit.

Upon realizing the stop sign had been run, the driver could have two reactions. Based on the actual outcome, the driver could conclude that less time would be wasted in the future by simply not stopping at stop signs and red lights any more. Or, based on what could have happened, the driver could resolve to pay better attention to traffic safety signs. Read more >

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25 Years Ago Today a President Changed Nuclear Policy Forever. Will This One?

, Washington representative and senior analyst

Today marks the 25th anniversary of the start of the most remarkable and rapid changes ever made in U.S. and Soviet/Russian nuclear posture and policy. Read more >

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Nuclear Plant Accidents: Browns Ferry Fire

, director, Nuclear Safety Project

Disaster by Design/ Safety by Intent #41

Disaster by Design

The March 22, 1975, fire at the Browns Ferry Nuclear Plant revealed a shortcoming to the defense-in-depth approach to nuclear safety: a common cause can defeat multiple barriers. Read more >

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