AP source: Pot found aboard plane near Marine One

One of the Presidential helicopters flies in formation as President Barack Obama travels to Los Angeles International Airport in Los Angeles, Thursday, Feb. 16, 2012. Obama is on a three-day trip to the West Coast attending fundraisers. (AP Photo/Susan Walsh)

February 16, 2012 9:20:37 PM PST
Two Air Force F-16 fighters intercepted a privately owned Cessna airplane that entered the same Los Angeles airspace as Marine One on Thursday as the helicopter was ferrying President Barack Obama.