U.S. Air Force Senior Airman Kenneth Kerns, 633rd Medical Operations Squadron medical technician, performs a blood pressure check on Elizabeth Rainville during the Retiree Health Fair March 30, 2012, at Langley Air Force Base, Va. Retirees 62 and older previously enrolled in TRICARE were eligible to enroll in TRICARE PRIME, receive initial evaluations, medical information and routine health care (U.S. Air Force photo by Senior Airman Stephanie Rubi/Released)