Paul Greenberg

Still another smoking gun has surfaced in the investigation of the continuing tragedy and scandal known as the Benghazi Incident, this time in the form of an email from a White House political operative telling one of the usual suspects just how to cover the administration's tracks. Somehow this memo was overlooked when a House committee subpoenaed any and all documents having to do with the well-planned attack on our compound in Benghazi -- an attack that took the lives of four brave Americans, including that of the most dedicated, enterprising and promising envoy in our whole diplomatic corps.

It took a Freedom of Information request from an outside group, Judicial Watch, to get a copy of that email. God bless all gadflies and bloggers and Concerned Citizens everywhere, annoying as they can be. Because they make democracy work.

The murderous attack at Benghazi was one the higher-ups in Washington should have known was coming, and one they had more than ample time and warning to prepare for. Everyone seemed to know the attack was imminent except the masterminds at Foggy Bottom, for it may have been the most telegraphed terrorist raid in history. Al-Qaida might as well have taken out an ad in the papers.

Yet the White House and State Department slept on. As if they were saving all their time and energy for the cover stories they would have to patch together later.

It's not surprising that the White House kept this telltale email under wraps; it's the most explicit proof yet that all the president's men -- and women -- orchestrated the whole cover-up. Not that any more proof was needed. There was nothing in this revealing email that anyone who's been following the story all along didn't suspect. And more than suspect -- because by now more smoking guns have emerged than at a good-sized firing range.

But this memo from Ben Rhodes seals the case. He's the White House pitchman -- excuse me, deputy national security adviser for strategic communications -- who provided Susan Rice with the story she would dutifully repeat about what had happened at Benghazi: It was all the fault of a YouTube video that set off a "spontaneous demonstration" that in turn sparked the attack on our envoys.

Paul Greenberg

Pulitzer Prize-winning Paul Greenberg, one of the most respected and honored commentators in America, is the editorial page editor of the Arkansas Democrat-Gazette.