Members of a Coast Guard law enforcement team work together to clear the hallways and rooms of Coast Guard Sector Buffalo, N.Y., during an active shooter exercise Jan. 29, 2015. The team responded to reports of three men shooting a weapon in the building then worked together with the Buffalo Police Department and Border Patrol to rescue hostages and detain the shooters. (U.S. Coast Guard photo by Petty Officer 3rd Class Lauren Laughlin)