credible threats and we want to make sure we're prepared. >> reporter: the pentagon warning those could be rocket or vehicle bombs. in kabul, families collect the bodies of loved ones and survivors come to terms with what has happened. this man says that he was an interpreter for the british and among the hundreds of afghan wounded. i fell into the stream and thought i was the only one alive. i saw all the other people were dead. more than 5,000 evacuees are waiting for flights attica beau kabul's airport and italy and spain ended their missions in afghanistan. >> we have the ability to include evacuees on u.s. military airlift out of afghanistan until the very end. >> reporter: the walls of kabul's airport are stained with blood as afghanistan counts down the final days of america's longest war. erin, this is the bloodiest attack committed by isis-k but