Two alcohol-related incidents between 2007 and 2009 involved agents who carry nuclear weapons and materials as they were on transport missions, the Department of Energy's watchdog agency said in a recently released report.
The nation's three nuclear weapons laboratories have had almost 60 serious accidents or near misses in the past seven years, according to a report released Wednesday by the Government Accountability Office.
The head of the U.S. nuclear security agency has been forced to resign over management and security issues, Secretary of Energy Samuel Bodman said Thursday.
Pentagon plans for an explosive test next month in Nevada have been delayed for at least three weeks because of a lawsuit over the experiment, which critics say may be part of an effort to develop new nuclear weapons.
Sixteen illegal immigrants last year worked on construction at one of the most sensitive weapons sites in the country, according to a report issued Monday by the Department of Energy's inspector general.
An investigation of security violations is under way at Los Alamos National Laboratory in New Mexico, including the latest reports of employees sending classified information over a non-secure e-mail system, a lab spokesman said Monday.
Workers at a nuclear weapons plant in Texas improperly used tape to secure broken pieces of a highly explosive component, which could have caused a "violent reaction," federal investigators report.
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