U.S. Air Force Tech. Sgt. Trista Castro, noncommissioned officer in charge of Monitoring Management with the 83rd Network Operations Squadron, speaks during an event celebrating Dr. Martin Luther King, Jr. at Langley Air Force Base, Va., Jan. 15, 2016. The ceremony included highlights of Dr. King’s work and how it affected all racial groups. (U.S. Air Force photo by Staff Sgt. Teresa J. Cleveland)