as a nation. we have just left afghanistan after 20 years, in the hands of the taliban, as they were 20 years ago, at enormous cost to the u.s. to the people of afghanistan, and i think there is an openness now in the conversation for a reckoning about what we have and have not learned in those 20 years. joining me now is mehdi hasan whose show streams daily on peacock and sunday nights at 8:00 p.m. on msnbc. max rose, a former democratic congressman, served as an officer in the u.s. army with combat tours in afghanistan. and anne-marie slaughter who is the director of policy planning at the state department in the obama administration. she's now the ceo of the public policy think tank new america. great to have you all. max, i want to start with you, as a new yorker, as someone who served in that war that has now ended, what you think we have learned in these 20 years.