Few are aware that September 23 could be the most important date in American history, the anniversary of U.S. suspension of nuclear tests for 28 years, the last U.S. nuclear test conducted on September 23, 1992.  Future historians may regard this date as the beginning of the end of American civilization, as Russia, China, and North Korea (and maybe Iran) have been testing nuclear weapons.  If President Trump’s plans to modernize the U.S. nuclear deterrent are thwarted by Democrats, the U.S. could lose the New Cold War and even, through our vulnerability, invite a nuclear World War III.