FILE - In a Sept. 26, 2009 file photo released by the New York City Police Department, Police Commissioner Raymond Kelly, center, briefs New York police officials and John O. Brennan, center left, ... more 
FILE - In a Sept. 26, 2009 file photo released by the New York City Police Department, Police Commissioner Raymond Kelly, center, briefs New York police officials and John O. Brennan, center left, assistant to the president for Homeland Security and Counter-terrorism, and Deputy New York Police Commissioner of Intelligence David Cohen, center right, on events surrounding the alleged plot to bomb New York commuter trains, at Police Headquarters in New York. After the Sept 11 attacks, Cohen helped build a new NYPD operation - a secret unit that would run undercover operations and cultivate a network of informants throughout the city to help combat terrorism. (AP Photo/NYPD, File) less 
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Associated Press | Photo By NYPD, File
Wed, Aug 24, 2011 5:06 AM EDT