Amnesty International said an analysis of an official Feb. 21 video released by the Egyptian military, trumpeting the triumphs of its northern Sinai crackdown on militants, showed one of the weapons, which can kill and maim indiscriminately. Although the video described the weapons as improvised explosive devices planted by the militants, Amnesty said, the markings on one identified it as an American-made Mk-118 anti-tank anti-personnel submunition, "which could only have been dropped by the Egyptian Air Force." Amnesty said the video showed the weapon to be "untampered with and in good condition despite its age," with an identifying number clearly...