******STARSHIP-SIZED SPOILERS!****** Here in the United States at the time of this writing, I’m not exactly in the ‘President’s Day’ spirit this month. However, this site is about sci-fi/fantasy/horror and nostalgia, not modern politics. Way back in March of 1969, Star Trek aired “The Savage Curtain,” an episode cowritten by no less than creator/ex-showrunner Gene…