Airline Security: Nine Years after September 11

Some $40 billion worth of security measures were defeated on Christmas Day when a man boarded an airplane with explosives sewn into his underwear. New procedures announced since Friday have already been revised as the Obama Administration struggles to reassure the traveling public. Today, the President vowed to "continue to use every element of our national power to disrupt, to dismantle and defeat the violent extremists who threaten us, whether they are from Afghanistan or Pakistan, Yemen or Somalia, or anywhere where they are plotting attacks" against the US. We hear what it's like now to fly into the US.  Will high-tech scanners or behavioral profiling be the wave of the future? Is Yemen now a greater threat to the US than Afghanistan?