visually at least, tell a different story. cnn's jake tapper asked blinken about that on sunday. >> reporter: president biden is intent on avoiding a saigon moment. that's a reference, of course, to the hasty and humiliating evacuation from vietnam. but with this troop surge to air lift americans out of afghanistan, aren't we already in the midst of a saigon moment? >> no, we're not. remember, this is not saigon. we went to afghanistan 20 years ago with one mission. and that was to deal with the folks who attacked us on 9/11. and we have succeeded in that mission. the objective that we set, bringing those who attacked us to justice, making sure that they couldn't attack us again from afghanistan, we've succeeded in that mission. and in fact we succeeded a while ago. and at the same time, remaining in afghanistan for another one, five, ten years is not in the national interest. you know, the british were there for a long time in the 19th century. the russians were there for a long time in the 20th century.