Krauthammer, as usual, nails it.
In World War II, with full international legality, the United States blockaded Germany and Japan. And during the October 1962 missile crisis, we blockaded (“quarantined”) Cuba. Arms-bearing Russian ships headed to Cuba turned back because the Soviets knew that the U.S. Navy would either board them or sink them. Yet Israel is accused of international criminality for doing precisely what John Kennedy did: impose a naval blockade to prevent a hostile state from acquiring lethal weaponry.