rolind p. walter, in memor of george o'neil. barbara pe zuckerberg. corporate funding is provided by mutual of america-- designing cuomized individual and group retirement products. that's why we're your retirement company. provided by:port has been and by the corporation for public broadcasting. a private corporation funded by the american people. and by contributions to your pbs station from viewers like you. thank u. from the tisch wnet studios at lincoln centern new york, ri sreenivasan. >> sreenivasan: good evening,an thanks for joining us. a possible peace deal between the u.s. and the taliban, thatle coul to the withdrawal of u.s. troops from afghanistan, ended abruptly last night when series of surprisiets. issued a after months of negotiations, the president tweeted, "unbeknownst to almost eveone, the major taliban leaders and, separately, the president of afghanistan, were going to secretly meet wigo me da camp d on sunday." he then "called off" more negotiations. mr. trump said he was cancelinge all talks use the taliban admitted to a suici