My original source for the post stands by the account provided. The individual, a National Security Council staffer who spoke on condition of anonymity, has provided truthful and verified information on past stories, and so I trusted the source for this one. Elements of the account have been subsequently borne out: yesterday afternoon, White House Press Secretary Robert Gibbs said that President Obama will ask his Afghanistan-Pakistan advisers to provide him with an exit strategy for the eight-year war, which is congruent with but not identical to my source’s information that Obama has asked the team to derive timetables for troop withdrawal.

But there are greater problems with the post. For one, the source was not actually present for the video teleconference that is the post’s central scene, and passed information to me second-hand. Furthermore, not only has the White House’s Tommy Vietor denied, on the record, that Ambassador Karl Eikenberry participated in a video teleconference yesterday morning, but the other two individuals I named as being present for the meeting — the inspector generals for Iraq and Afghanistan — have, through representatives, denied being present. I cannot subsequently stand by this account.

From the start, the post should have a) more clearly indicated that my source wasn’t present at the meeting; b) more clearly indicated that the account provided was single-sourced; and c) verified the information provided before publication. My enthusiasm for a hot story outpaced my professional judgment. For that I take full responsibility, retract the story and issue a full apology for its publication.

Why would Biden have made a statement which so radically undermines Obama’s policy towards Iran? Maybe it reflects bad new advice coming from a new NSC adviser of vague portfolio. Maybe it’s a clumsy attempt to ratchet up some pressure on the Iranian regime without actually doing anything, without regard to the spiral dynamics it could kick into gear. Or maybe it is just a major Biden gaffe, not a dramatic departure in the Obama administration’s policy. That would still be bad, but would be salvagable [sic]. Either way, the administration urgently needs to come forward quickly with a restatement of its policy — and make sure the Israelis and others in the region understand it clearly — or else it risks paying some extraordinarily serious costs.

The White House emailed Marc to walk Biden’s statement back — indicating that the vice president really did say something out of line with administration policy — by writing, “Our friends and allies, including Israel, know that the President believes that now is the time to explore direct diplomatic options.” None of which really explains why Biden said what he said. It’s hard to imagine that a former chairman of the Senate Foreign Relations Committee didn’t understand that his words would be read as a green light for an Israeli strike on Iran.