Amb. Ryan Crocker: U.S. embassy in Kabul on lockdown

Amb. Crocker: "The Afghan national security forces pretty much have the situation under control in Kabul now. Still some reports of a couple of terrorists out there, but I think this one is clearly winding down."

U.S. Ambassador Ryan Crocker talks to CNN from the Kabul Embassy after it's forced to lock down due to Taliban violence.

Amb. Crocker: "Attacks like this demonstrate why we need to be here. ... It also shows there's a very dangerous enemy out there with capabilities and with safe havens in Pakistan. To get out before the Afghans have a full grip on security, which is a couple of years out, would be to invite the Taliban, Haqqani, and al Qaeda back in and set the stage for another 9/11. And that, I think, is an unacceptable risk for any American."