For Nearly 20 Years the Nuclear Launch Code at all Minuteman Silos in the United States Was 00000000

→Subscribe for new videos every day ! →How Dick came to be short for Richard: Never run out of things to say at the water cooler with TodayIFoundOut ! Brand new videos 7 days a week ! More from TodayIFoundOut The Nazi Super Cannon What Does the D in D-Day Stand For? In this video: We guess the first thing we need to address is how this even came to be in the first place. Well , in 1962 JFK signed the National Security Action Memorandum 160 , which was supposed to ensure that every nuclear weapon the US had be fitted with a Permissive Action Link (PAL) , basically a small device that ensured that the missile could only be launched with the right code and with the right authority. Want the text version?: Sources: