NEW YORK - MAY 18: Police keep watch outside the Daniel Patrick Moynihan U.S. Courthouse in lower Manhattan May 18, 2010 in New York City. Pakistani-born U.S. citizen Faisal Shahzad, the admitted plotter behind the failed car bombing of Times Square, was brought to federal court today to be arraigned by authorities on terrorism and mass destruction charges. (Photo by Mario Tama/Getty Images)
Federal prosecutors released paperwork Wednesday. They can delay until June 21 deciding how to proceed with charges in the May 1 attempted bombing of Times Square.
The Pakistan-born U.S. citizen was arrested two days after a vehicle was found with a large bomb that failed to ignite.
Authorities say he cooperated with investigators for two weeks before he asked for a lawyer. Shahzad was charged with attempted use of weapons of mass destruction and attempted acts of terrorism.
A message for comment left with his lawyer was not immediately returned.