1968年图勒空军基地B-52坠毁事件

1968年美国图勒空军基地B-52坠毁事件，是一起发生在1968年1月21日的飞机坠毁事件，事件中一架美国空军的B-52轰炸机坠毁。这架B-52轰炸机携带了4颗氢弹，执行冷战期间的鉻穹頂行動（英语：Operation Chrome Dome），在飞越北冰洋的巴芬湾时，因为机舱起火迫使机组人员在迫降前放弃飞机。6名机组人员成功脱险，但其中1名因为没有弹射座椅，在试图跳伞时死亡。飞机随后坠入格陵兰島西北部美軍圖勒空軍基地附近的北极星海湾，导致4颗氢弹头破裂并扩散，产生大范围的放射性污染。 美国和丹麦启动了一次集中清理和恢复工作，但其中一颗弹头未被找到。事發後美国战略空军的鉻穹頂行動（英语：Operation Chrome Dome）立即终止，这更加突出了此任务的安全和政治风险。随后一系列的安全措施被加强，并研制出核武器上使用的更稳定的常规炸药。 1995年，有报告揭发丹麦政府有意对格陵兰的核武器事故保持缄默，这违反了1957年丹麦的无核区域政策。参与清理的工人因为核辐射产生相关疾病，一直在寻求赔偿。2009年3月，时代杂志认为这次事故是世界上最严重的一起核事故。 1961年B-52同溫層堡壘轟炸機空難 Blacker, Coit D. & Gloria Duffy (Stanford Arms Control Group). International arms control. Stanford University Press. 1984. ISBN 0-8047-1211-5.  Busch, Nathan E. No end in sight. University Press of Kentucky. 2004. ISBN 0-8131-2323-2.  Christensen, Svend Aage (Danish Institute for International Studies – DIIS). The Marshal's Baton. There is no bomb, there was no bomb, they were not looking for a bomb. DIIS. 2009 [2011-01-21]. ISBN 978-87-7605-331-4. （原始内容存档于2009-08-17）.  Clarke, Lee Ben. 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