Photo of Spattered with blood from a head wound caused by flying glass, Deputy Ambassador U. Alexis Johnson is led from the U.S. Embassy following the terrorist bombing, March 30, 1965.

Photo of Spattered with blood from a head wound caused by flying glass, Deputy Ambassador U. Alexis Johnson is led from the U.S. Embassy following the terrorist bombing, March 30, 1965. (AP Photo/Horst Faas)

Deputy U.S. Ambassador U. Alexis Johnson, spattered with blood, is taken from the embassy in the wake of the March 30, 1965, bombing that left Robbins dead. (Manh Hai, AP Photo/Horst Faas)

Manh Hai, AP Photo/Horst Faas