WASHINGTON - JULY 08:  Pulitzer Prize winner and Vietnam War expert Stanley Karnow (R) speaks as Vietnam Veterans Memorial Fund founder and President Jan Scruggs looks on during a ceremony commemorating the 50th anniversary of the first two American combat casualties of the Vitenam War at The Wall on the National Mall July 8, 2009 in Washington, DC. The first two of more than 58,000 names that appear on the Vietnam Veterans Memorial, U.S. Army Master Sgt. Chester Ovnand and Maj. Dale Buis died on July 8, 1959 when their residential compound was attacked by North Vietnamese communists in Bien Hoa, north of what is now Ho Chi Minh City. Getty Images logo Getty Images 5 months ago

WASHINGTON - JULY 08: Pulitzer Prize winner and Vietnam War expert Stanley Karnow (R) speaks as Vietnam Veterans Memorial Fund founder and President Jan Scruggs looks on during a ceremony commemorating the 50th anniversary of the first two American combat casualties of the Vitenam War at The Wall on the National Mall July 8, 2009 in Washington, DC. The first two of more than 58,000 names that appear on the Vietnam Veterans Memorial, U.S. Army Master Sgt. Chester Ovnand and Maj. Dale Buis died on July 8, 1959 when their residential compound was attacked by North Vietnamese communists in Bien Hoa, north of what is now Ho Chi Minh City.