The Woeful TSA Doesn't Need More Staff. It Needs This Tech

American airport security has never been something to look forward to, but in the past few weeks, it's attained new levels of misery. The busy summer travel season is only just starting, and already the public's been warned to expect the worst. Understaffed Transport Security Administration checkpoints mean lines spilling out of airport doors. Hauled before Congress for a ritual grilling, TSA chief Peter Neffenger pledged to increase staffing (including sniffer dogs) and encourage more people to enroll in the TSA Pre-Check program, in which trusted travelers (who've undergone background checks and paid a fee) pass through a quicker, less rigorous screening. He sacked his head of security.