186886890 _KD013_TRAVELERS USE LOS ANGELES INTERNATIONAL AIRPORT

a group of police officers walking

TSA agents walk on the departures level a day after a shooting that killed one Transportation Security Administration worker and injured several others at Los Angeles International Airport November 2, 2013 in Los Angeles, California. The airport is almost back to normal operations a day after a man pulled an assault rifle and shot his way through security at Terminal 3, killing one Transportation Security Administration worker and wounding several others. Federal officials identified the alleged gunman as Paul Ciancia, 23, of New Jersey. (Photo by Kevork Djansezian/Getty Images)