we've got a deep dive into that wild story and what might have happened. that's ahead. first, however, leading this hour, secretary of state antony blinken right now facing tough questions on capitol hill in the wake of the chaotic and deadly u.s. withdrawal from afghanistan just weeks ago. secretary blinken defending the way the evacuation was carried out, saying the u.s. did extensive preplanning for the drawdown and saying ultimately, the u.s. evacuated almost all american citizens in the country, though at least about 100 american citizens still remain in afghanistan who want to get out, according to blinken, to say nothing of afghans and legal permanent residents. as cnn's jessica dean reports for us, both republicans and democrats alike got heated in their demand for answers from the secretary. >> this was an unmitigated disaster of epic proportions. i never thought in my lifetime that i would see an unconditional surrender to the taliban. >> reporter: the house foreign affairs committee questioning secretary of state antony blinken for the first time since