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Managing Nuclear Worker Fatigue

, director, Nuclear Safety Project

The Nuclear Regulatory Commission (NRC) issued a policy statement on February 18, 1982, seeking to protect nuclear plant personnel against impairment by fatigue from working too many hours. The NRC backed up this policy statement by issuing Generic Letter 82-12, “Nuclear Power Plant Staff Working Hours,” on June 15, 1982. The Generic Letter outlined guidelines such as limiting individuals to 16-hour shifts and providing for a break of at least 8 hours between shifts. But policy statements and guidelines are not enforceable regulatory requirements. Read more >

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North Korea’s April 5 Missile Launch

, co-director and senior scientist

North Korea launched a missile from its east coast into the Sea of Japan at 6:12 am local time on April 5 (5:42 pm on April 4 US eastern time).

US Pacific Command initially identified it as a KN-15 missile, called Pukguksong-2 in North Korea, which is a two stage solid-fueled missile with an estimated range of 1,200 km based on its previous test in February.

Subsequently, however, Pacific Command said it believed the missile was instead an older Scud, and that it may have tumbled, or “pinwheeled,” during flight. Read more >

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Leak at the Creek: Davis-Besse-like Cooling Leak Shuts Down Wolf Creek

, director, Nuclear Safety Project

The Wolf Creek Generating Station near Burlington, Kansas has one Westinghouse four-loop pressurized water reactor that began operating in 1985. In the early morning hours of Friday, September 2, 2016, the reactor was operating at full power. A test completed at 4:08 am indicated that leakage into the containment from unidentified sources was 1.358 gallons per minute (gpm). The maximum regulatory limit for was such leakage was 1.0 gpm. If the test results were valid, the reactor had to be shut down within hours. Read more >

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Why Freezing North Korea’s Weapons Programs Would Make Us Safer

, co-director and senior scientist

Last week, China proposed a way to reduce tensions on the Korean peninsula: Pyongyang would freeze its missile and nuclear programs in exchange for Washington and Seoul halting their current round of military exercises. China also sees this as a way of starting talks between the United States and North Korea, which it believes is necessary to resolve hostilities on the peninsula.

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New START is a Winner

, Washington representative and senior analyst

U.S. military leaders continue to strongly support New START, the arms control treaty between the United States and Russia that limits each country to no more than 1,550 deployed, long-range nuclear weapons by 2018.

The problem is that President Donald Trump is apparently unwilling to listen to their sage advice. Read more >

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