Native American code talkers stand during a ceremony in which they received the Congressional Gold Medal in Emancipation Hall at the Capitol in Washington, D.C., Nov. 20, 2013. The U.S. Congress awarded the medal as an expression of the nation's profound gratitude to the code talkers for their valor and dedication during World War I and World War II. Navy Adm. James A. Winnefeld Jr., vice chairman of the Joint Chiefs of Staff, spoke at the event. (DOD photo by U.S. Army Staff Sgt. Sean K. Harp)