his parent say he was the best son parents could ask for. how will staff sergeant hoover be remembered? >> as an american hero. these young men and women showed passion and courage to help evacuate those who would come here legally. it's very much in keeping with our extraordinary national heritage. >> you have said it's unthinkable that the u.s. would leave anyone behind. you heard jake sullivan talk about how august 31st is not a cliff and some people might be left behind. to be fair, the white house says another terrorist attack at the airport is imminent, which is obviously complicating the evacuation efforts. should the u.s. stay? should there be a u.s. military presence in the kabul airport until every american citizen and legal permanent resident and afghan siv applicant is gone, even if that means service