In this handout from the U.S. Navy, the X-47B Unmanned Combat Air System (UCAS) demonstrator taxies on the flight deck of the aircraft carrier USS Harry S. Truman December 9, 2012 in the Atalntic Ocean. The 'stealth drone' is reportedly the first unmanned aircraft piloted by artificial intelligence to take off, fly a programmed mission and return to its base.
Credit: U.S. Navy
In this composite image a comparison has been made between former US Presidential Candidates Harry S Truman (L) and Thomas E. Dewey. In 1948 Harry S Truman won the presidential election to become the President of the United States. 1948: Thomas E. Dewey, Governor of New York poses on June 1948. He had just received the unanimous vote of the Convention to run as the Republican Party's presidential candidate.
General George Marshall, (1880-1959) American Chief of Staff 1939-1945. salutes in 1942.
Acting Secretary of State Joseph C. Grew (1880 - 1965) posing for a picture in his office in the State Department Building in 1943.
Credit: Marie Hansen
Secretary of State James F. Byrnes in 1946.
Credit: George Skadding
A line drawing of President Harry Truman circa 1950.
Credit: Ed Vebell
In this composite image a comparison has been made between former US President Harry S Truman and his serving Secretary of State Dean Acheson. UNSPECIFIED - circa 1949: Dean Acheson, (1893-1971) US Politician pictured when he was Secretary of State designate appearing before a Senate Foreign Relations committee around 1949. Dean Acheson was a successful lawyer who rose in political circles to become American Secretary of State 1949-1952.