The Air Force treated nuclear weapons handling as a dead-end job. Sometimes a single incident can reshape an entire military service. The U.S. Air Force was humiliated in late 2007 when ground crews unwittingly loaded six live nuclear warheads onto a B-52 bomber, believing them to be cruise missiles.The nukes were missing for 36 hours, cruising from Minot Air Force Base in North Dakota to Barksdale Air Force Base in Louisiana, before anyone noticed. Four officers were relieved of their commands and 65 airmen have been decertified from handling nuclear weapons, but the Air Force’s post–Cold War neglect of its nuclear missions—ICBMs and bombers-—had been exposed. The service was treating its nuclear mission like an unwanted relic, an unfitting attitude toward weapons that can eradicate life on the planet.
Mishandling of nuclear weapons is not a new thing. As this video shows that the US almost nuked Canada, Spain and itself
In history there are 2 major nuclear disasters that have taken place. Simi Valley California was the site of the worst nuclear disaster in U.S. history in 1959, and the amounts of radiation leaked to the environment and atomosphere were more than 240 times that of the accident at 3-Mile Island. The area is beautiful today, but what still remains from many decades ago is shown in the video below.