With each new revelation, what has always been obvious becomes more pronounced: the State Department’s self-proclaimed final word on the Benghazi Massacre, the risibly named “Accountability Review Board” investigation, is a fraud. Yet, like the rest of the Obama administration’s obstructive wagon-circling, the ARB’s report continues serving its intended purpose: to thwart efforts to hold administration officials accountable. Even on Fox News, which has been admirably dogged covering a scandal the Obamedia has done its best to bury, the refrain is heard: How could the ARB report be a whitewash when its investigation was run by such Washington eminences as...