http://cbs5.com/topstories/local_story_332163039.html
"Sacramento International Airport is getting a new anti-terrorism device called a 'puffer' that will be used instead of wand or hand searches for some passengers. The machine blows air on a traveler and quickly sucks it back in, then analyzes the sample for traces of explosives. Chief Operating Officer Rob Leonard said the airport also wants to add a 'known traveler' program to speed frequent fliers through security checkpoints." [Snippet]
