I’m 31 feet below ground at the Delta One (D-01) launch facility, standing in a reinforced concrete tube, behind a foot-thick steel blast door. A loop of Cold War tunes plays in my head: The Final Countdown, followed by 99 Red Balloons (the English version, with that sexy accent). I’m facing a grey metal control panel with several bakelite telephones and a number of switches — but only one of them matters.