Intelligence Officials Examine Confiscated Evidence

U.S. intelligence officials are pouring over a trove of intelligence information gathered from Osama bin Laden's compound in Abbottabad, Pakistan. The materials have been shipped back to the U.S., and, in order to ensure a proper chain of custody, the FBI has housed the evidence at its lab in Quantico, Va. NPR's Dina Temple-Raston tells Melissa Block the latest on the investigation — and what it means to al-Qaida's future.