In her latest round of testimony on the Benghazi attack that left four Americans dead, Hillary Clinton, secretary of state at the time of the attack, was exposed as a liar. But she was careful to avoid any “serious” scrutiny of the 800-pound gorilla in the room: the Obama administration's widely reported gun-running programs for jihadists battling former U.S. government terror-war allies in Libya and Syria. When questioned, Clinton denied any knowledge of such a program, only to be confronted with an e-mail in which she proposed doing precisely that via proxies. Indeed, the fact that Obama has been arming...