[W.]

Ol’ Spocko looks a little pale there. Apparently that uniform he’s in don’t quite agree... ;)

[Paul R.]

There’s also Trek’s “The City On The Edge Of Forever”, which speculates about the consequences of delayed US involvement in WW2, and Germany successfully developing nukes 1st. (Evidently the assumption is that we’d be even less prepared when Pearl Harbor occurs.)

Of course, the discussion of what happens when certain parties get nukes is VERY relevant, now...