**FILE** New York 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 Sept. 26, 2009, at police headquarters in New York on events surrounding an alleged plot to bomb New York commuter trains. (Associated Press/NYPD)

**FILE** New York 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 Sept. 26, 2009, at police headquarters in New York on events surrounding an alleged plot to bomb New York commuter trains. (Associated Press/NYPD)