| Publication |
2011.
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| Summary/Abstract |
Thomas D'Agostino was sworn in on August 30, 2007, as the Department of Energy's undersecretary for nuclear security and as administrator of the National Nuclear Security Administration (NNSA), a semiautonomous agency within the department. On September 3, 2009, President Barack Obama announced that D'Agostino would continue to hold those positions. From February 2006 to August 2007, he served as the NNSA's deputy administrator for defense programs.
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