Chief Master Sgt. Sammy Ester, White House Communications Agency Air Force senior enlisted advisor, describes the agency's mission during the WHCA recruiting brief March 26, 2013, at Nellis Air Force Base, Nev. WHCA is a one-of-a-kind military unit dedicated to provide premier, worldwide communication support to the President and his staff. (U.S. Air Force photo by Senior Airman Matthew Lancaster)
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