Later today, President Obama gets a preliminary report on what went wrong in the country's airport security systems. We talk to New York Times reporter Eric Lipton, international security analyst Bob Ayers.
So, why does it seem to be the explosive of choice for these terrorists? To help explain this is Jimmie Oxley, a professor of chemistry at the University of Rhode Island, whose specialty is explosives.
Over the weekend, federal authorities charged a 23-year-old Nigerian man with trying to blow up a Detroit-bound airliner on Christmas Day. For an update on the case, we speak with reporter Scott Shane.
We talk with Micheline Maynard, who is covering the story of this recent attempted terrorist attack for the New York Times and to Georgetown's Paul Pillar about how this incident may change procedure around U.S. airport security.