Federal officials have refused to answer why Faisal Shahzad, the prime suspect in the failed Times Square bombing, was allowed to board an international flight before being arrested. Experts suggest the feds might have wanted to see if he was meeting anyone.
That is the next question investigators will be asking now that Faisal Shahzad has been charged in the Times Square bomber plot. Reports suggest arrests in Pakistan have already been made.
Video cameras, fingerprints, and chemical clues could all come into play as authorities try to identify who drove an explosives-laden vehicle into Times Square. The bomb plot left behind plenty of evidence.