On Monday the Israeli ambassador to the UN demanded the resignation of Peter Hansen, the head of the UN Relief and Works Agency for Palestine Refugees, accusing him of complicity in terror. However, the story began to unravel when the agency claimed that the object in the video was too thin and light to be a missile and that a militant would be more careful in handling a crude, homemade explosive device. A day later the agency produced the driver of the ambulance in question, who said that the object was a rolled-up stretcher and his crew had been on...