Pro-regime thugs in Syria harassed and set upon the U.S. ambassador just over a week ago. The event was not publicly reported in Washington until Tuesday, when a journalist discovered a propaganda video exploiting the attack. The episode reveals an American diplomat with more fortitude and canny than his boss in the White House. U.S. Ambassador Robert Ford has distinguished himself by symbolically standing with the brutalized people of Syria as they seek freedom from the dictator Assad. Ford has done so through a radical and seldom-used diplomatic technique in the annals of the U.S. Foreign Service: showing up and...