https://www.wilsoncenter.org/event/nixons-nuclear-specter-the-secret-alert-1969-madman-diplomacy-and-the-vietnam-war
https://outrider.org/nuclear-weapons/articles/nixons-drunken-run-ins-bomb
https://nsarchive2.gwu.edu/NSAEBB/NSAEBB195/index.htm
https://blog.nuclearsecrecy.com/2013/10/25/nixon-and-the-bomb/