that no official estimate has been pessimistic enough for just how quickly afghanistan has fallen to the taliban and now with evacuations ramping up and time running out, we have new nbc reporting on the toll this crisis is taking. people are furious and disgusted, said one former intelligence official. one defense official said he grew nauseated as he considered how many afghan allies would be left behind. joining me now is someone who spent more than a decade as a top u.s. security leader, former director of the cia and an nbc news security analyst, john brennan. as always, thank you for being here. i want to get to the havana syndrome situation as well as we had another potential incident in vietnam where the vice president s visiting. i want to start with just your, if you have a sense of how many, when we were all trying to figure out how many people are left to be evacuated, there s americans then this next group