On January 21, 1968 a B-52 Boeing Stratofortress, carrying four 1.1 megaton H-Bombs, caught fire and crashed in the Arctic Circle near Thule, Greenland. The Strategic Air Command's (SAC) Arctic Circle route was an airborne alert operation, referred to by the pilots of these large bombers as the "Chrome Dome," and was a 24-hour round-the-clock strategic undertaking. Carrying four 1.1 megaton H-Bombs, the B-52's were ready on a moment's notice to wage all-out warfare on an enemy that dare provoke an attack. The "official" response by the United States was that all four H-bombs were destroyed on...