Napolitano: "The system worked"

Homeland Security Secretary Janet Napolitano said Sunday that the thwarting of the attempt to blow up an Amsterdam-Detroit airline flight Christmas Day demonstrated that "the system worked."

Asked by CNN's Candy Crowley on "State of the Union" how that could be possible when the young Nigerian who has been charged with trying to set off the bomb was able to smuggle explosive liquid onto the jet, Napolitano responded: "We're asking the same questions."

Napolitano added that there was "no suggestion that [the suspect] was improperly screened."