WASHINGTON (AP) -- The head of an agency charged with safeguarding the nation's nuclear weapons stockpile says a breach in which an 82-year-old nun and two other protesters sneaked into a Tennessee nuclear weapons plant last year is "completely unacceptable" and an "important wake-up call."
Neile Miller, acting administrator of the National Nuclear Security Administration, says security of nuclear materials is the Energy Department most important responsibility, adding that "there is no tolerance" for federal employees or contractors who don't do their jobs.
Miller told a Senate subcommittee Wednesday that officials have taken "decisive action" since the incident at the Y-12 National Security Complex in Oak Ridge, including a new management team and a new defense security chief to oversee all NNSA sites.
A jury began deliberations Wednesday in the July break-in.
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