HANSCOM AIR FORCE BASE, Mass. -- U.S. Senator Elizabeth Warren views Tactical Air Control Party equipment during a demonstration by 1st Lt. Joseph Calidonna, Theater Battle Control Division, during her first full visit here Aug. 20. During her visit, the senator received an Air Force Life Cycle Management Center mission overview, technology demonstrations, a windshield tour of the base and visited the Mass. National Guard Joint Force Headquarters. (U.S. Air Force photo by Rick Berry)