Lt. Larry Monts of the Jacksonville, Fla., Aviation Authority and Lt. j.g. John Paul Monreal-Berner of Coast Guard Sector Jacksonville, Fla., watch as Coast Guard role players and Jacksonville International Airport employees participate in an active shooter exercise at the airport Wednesday, April 16, 2014. More than 30 Coast Guard members volunteered to role play as flight passengers travelling through airport security during the exercise. (U.S. Coast Guard photo by Petty Officer 1st Class Lauren Jorgensen)