` ` Potential security issues '' led to closure , plant says in release . Pantex Plant is the nation 's only nuclear weapons storage , disassembly facility . The event , which was not described , occurred around 8 a.m. the release said . Plant supports U.S. Department of Energy / National Nuclear Security Program .
` ` Potential security issues '' led to closure , plant says in release . Pantex Plant is the nation 's only nuclear weapons storage , disassembly facility . Plant supports U.S. Department of Energy / National Nuclear Security Program .