Nonproliferation : U.S. agencies have taken some steps, but more effort is needed to strengthen and expand the proliferation security initiative : report to congressional committees.

The President announced the Proliferation Security Initiative (PSI) in 2003 to enhance U.S. efforts to prevent the spread of weapons of mass destruction. In a 2006 classified report, GAO recommended that agencies establish clear PSI policies and procedures and performance indicators. In 2007, Congre...

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