comprehensive documentary series on the vietnam war is filled with stories and voices of ordinary soldiers on all sides of the conflict. but the most tragic aspect of the tale, for me at least, was to hear lindyn lyndon johnson o before full u.s. engagement admitting that the war could not be won. johnson's dilemma is one that every president faces and one that donald trump is bringing upon himself with north korea and iran now. in may, 1964, when the united states had fewer than 20,000 troops in vietnam serving only as advisers and trainers, this is what president johnson said to his national security advisor, george bundy. >> i stayed awake last night thinking about this thing. the more i think of it, i don't know what in the hell, it looks like to me we're getting into another korea. this worries the hell out of me. i don't see what we can hope to