NEW YORK, NY - NOVEMBER 18:  Fake grenades and ammunition is displayed after being confiscated at airport security checkpoints at the JFK International Airport on November 18, 2014 in New York City. The Transportation Security Administration (TSA), displayed a cash of weapons and prohibited items taken up from travelers at airport security checkpoints and from checked luggage. The federal agency is reminding people to pack carefully during the heavy holiday travel season.  (Photo by John Moore/Getty Images)