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We have had ambassadors murdered abroad before, but we have never seen anything quite like the tragic fate of Chris Stevens. Amid all the controversy over Libya, we have lost sight of the human — and often horrific — story of Benghazi: a U.S. ambassador attacked, cut off and killed alone, after being abused by frenzied terrorists, and a second member of the embassy staff murdered, as two American private citizens rushed to the rescue, heroically warding off Islamist hit teams, until they were overwhelmed and also killed.

Seven weeks after the tragedy in Benghazi, new government narratives just keep appearing, as various branches of government point the finger at one another. Now the president insists that “the minute” he...