Investigators have had the suspect in the Times Square bombing attempt in custody for nearly two days now. And authorities say Faisal Shahzad has been talking. One thing U.S. officials want to know is who he trained with while in Pakistan. Michele Norris talks to NPR's Dina Temple-Raston. Sources tell Temple-Raston that Shahzad's training may have been with the group Lashkar-e-Taiba, a Pakistani group perhaps best known for the terror attack in Mumbai a couple of years ago.