U.S. Coast Guard Lt. Cmdr. Jacob Hobson, a member from Coast Guard Sector New York Waterways Branch, talks to federal, state and local agency members during a simulated active shooter table-top exercise on Ellis Island, N.Y., Oct. 19, 2016. The simulated active-shooter exercise allows all of the agencies involved to test their ability to respond to an incident involving various scenarios without deploying operational units. (U.S. Coast Guard photo by Petty Officer 2nd Class Sabrina Clarke)