FBI Weapons of Mass Destruction Directorate

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The Weapons of Mass Destruction Directorate (WMDD) is a division of the National Security Branch of the Federal Bureau of Investigation. WMDD addresses and investigates emerging threats the United States faces from the use of weapons of mass destruction. WMDD specifically consolidates all relevant FBI assets under one comprehensive program capable of detecting, deterring, and dismantling WMD programs. In the wake of the September 11, 2001 attacks, the Division's funding and manpower have significantly increased.

Leadership
The Weapons of Mass Destruction Directorate is headed by Assistant Director, who reports to the Executive Assistant Director of the FBI National Security Branch. The current Assistant Director is John G. Perren, who was appointed by FBI Director Robert Muller on May 10, 2012.

Organization
The Weapons of Mass Destruction Directorate has three sections:
 * Intelligence and Analysis Section
 * Countermeasures and Preparedness Section
 * Investigations and Operations Section