Coast Guard Petty Officer 2nd Class Joseph Solden, from Coast Guard Station Buffalo, N.Y., looks around the corner for an active shooter at Coast Guard Sector Buffalo as part of an active shooter exercise held at the sector Jan. 29, 2015. Solden was part of a five-man Coast Guard law enforcement team responding to the active shooter during the exercise. (U.S. Coast Guard photo by Petty Officer 3rd Class Lauren Laughlin)