JFK Lives - Seriously, this one's been done to death. Granted, I can somewhat empathize with the "martyrdom" aspect that comes with a handsome, vivacious fella like Kennedy being taken out so unexpectedly, though digging into his various health issues and escapades over the years will tell you that's more public image than it was reality. That's something people taken in by the idea of a two-term Kennedy presidency forget, I imagine — especially since future battles over civil rights and the brewing counterculture of the Sixties would've tested his metal.
Would we get as many Vietnamese and other Indochinese refugees in this TL once Vietnam and Laos fall to the Communists? (I think that Cambodia might actually escape Communist rule in this TL due to the US not bombing it.)