Despite invasive full body scanners popping up at our nation’s airports, Janet Napolitano says you’ll still have to take your shoes off to get through security. According to the Homeland Security Secretary, shoes are so impenetrable that they can’t be fully screened while they’re on your feet, reports the AP. Too bad these never caught on. During a live video chat session, she also spoke to the shortage of air marshals on domestic and international flights, and about incidents, like the Newark airport kisser, where non-passengers cause security meltdowns by entering unauthorized areas. She said that for now only ticketed travelers would be allowed in secure areas but that "It may be possible to change that as we move forward."