The Russian War in Ukraine has re-aroused the fear of a nuclear holocaust.  The closest humanity has been to extinction was the prospect of a similar horror through much of the Cold War.  Two J. Robert Oppenheimer productions will shake you out of your comfort zone.  It's actually worse because he is only the Father of the Atomic Bomb.  He had a feud with Edward Teller, Father of the Hydrogen Bomb. MSNBC had a documentary last night:   To End All War:  Oppenheimer and the Atomic Bomb , featuring a number of comments by Christopher Nolan, whose film,  Oppenheimer , will be released on July 21.  This movie is rated R and will be 3 hours long, with a glowing cast:  Cillian Murphy as J. Robert Oppenheimer, Emily Blunt as his wife, Matt Damon as General Leslie Groves, who ran the Manhattan Project, Robert Downey, who eventually became Oppie's nemesis, Kenneth Branagh, Florence Puch, as O's girlfriend/mistress, Gary Oldman, Josh Hartnett, Rami Malek, Matthew Modine, and others. S