据美国《思想绒毛》杂志报道，冷战期间，美国军方至少丢失8枚核武器，这些武器再也没有找到过。美国国防部将此类核事故的代号称为“断箭”。这些丢失核弹的爆炸总威力相当于广岛原子弹威力的2200倍。以下就是美国《思想绒毛》杂志披露的八枚丢失的核弹。
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“迷途者”1号：扔进太平洋
1950年2月13日，一架美国B-36轰炸机在从阿拉斯加飞往得克萨斯的途中，三台发动机突然失控，飞机开始急速下坠。为了减轻机上载荷，机 组人员决定将一枚30千吨当量的Mark 4型(代号“胖子”)核弹扔进太平洋。炸弹内的常规炸药受到冲击后立时被引爆，产生一道刺眼的亮光和强烈的冲击波。“胖子”的铀芯部件丢失，再未找到。美 国空军称，核弹的钚芯部分也已不复存在。
“迷途者”2号与3号：消失在茫茫天际
1956年3月10日，一架从佛罗里达州麦克迪尔空军基地飞往海外空军基地的B-47轰炸机在地中海上空进行空中加油时突然没了踪影，当时机上 携带两枚核弹头。在从1.45万英尺的高空失踪之后，美国空军没有再听到有关这架B-47的任何消息，而包括核芯在内的飞机残骸也未找到。尽管核弹头的型 号不得而知，但Mark 15型热核炸弹(B-47轰炸机通常携带这种核弹)所爆发的威力应达到340万吨级。
“迷途者”4号和5号：沉入北卡罗来纳州沼泽地
1961年1月24日，一架携带两枚2400万吨级核弹的B-52轰炸机在从北卡罗来纳戈尔德斯波洛(Goldsboro)空军基地起飞后坠 毁。其中一枚核弹沉入一块沼泽地，尽管搜救人员在地下50英尺处仔细寻找，但其铀芯部件还是未被找到。为了确保这枚核弹不会落入敌人之手，美国空军买下这 块土地的永久使用权，获得政府许可后，他们可以随时在这块地上“寻宝”。
“迷途者”6号：日本出事故
1965年12月5日，一架携带100万吨级热核武器(氢弹)的A-4E“天鹰”攻击机从美国海军“提康德罗加”号航母甲板上滑落，坠入太平 洋。“天鹰”攻击机和热核武器坠入1.6万英尺的大海深处，从此音讯全无。15年后，美国海军终于承认了这起重大事故，宣称事故发生在距陆地500英里处，一个相对安全的公海水域。
但是，事实并非如美国海军说的那样——这起事故发生在距日本琉球群岛约80英里的地区，当时“提康德罗加”号航母刚刚结束对越南的轰炸任务，返回日本横须贺的途中。这一事故经媒体披露后，在日本政坛引起轩然大波。日本政府一直禁止美国将核武器带入日本领土。
“迷途者”7号和8号：神秘沉没于大海
1968年春，美国核攻击潜艇“天蝎”号在返回弗吉尼亚州诺福克基地途中，在亚速尔群岛西南约400英里处神秘沉没。艇上99名工作人员全部遇 难，除此之外，“天蝎”号所携带的两枚核弹也沉入海底。这两枚核弹的具体型号不得而知，但不是反潜导弹，就是装有核弹头的鱼雷。它们可产生2.5万吨当量 的爆炸威力(具体情况取决于所使用的核武器类型)。(秋凌）
译文:
8 nuclear weapons had lost by U.S army
According to the report of Mental Floss, during the Cold War, the United States military lost at least eight nuclear weapons, and all of them hadn't never been found. The Department of Defense of United States calls this kind of situation as“broken arrows".These American stray nukes, with a combined explosive force 2,200 times the Hiroshima bomb. The next is Mental Floss's introdutions about the 8 stray nukes.
Stray1: Into the Pacific Ocean
On February 13, 1950, anAmerican B-36 bomber en route from Alaska to Texas lost power in three engines and began losing altitude. In order to lighten the aircraft, the crew jettisoned its cargo, a 30-kiloton Mark 4 (Fat Man) nuclear bomb, into the Pacific Ocean. The conventional explosives detonated on impact, producing a flash and a shockwave. The bomb’s uranium components were lost and never recovered. According to the USAF, the plutonium core wasn’t present.
Stray2&3: into the sky
On March 10, 1956, a B-47 bomber carrying two nuclear weapon flies from MacDill Air Force Base in Florida to an overseas airbase. And then,it disappeared during a scheduled air-to-air refueling over the Mediterranean Sea. After becoming lost in a thick cloud bank at 14,500 feet, the plane was never heard from again and its wreckage.Including the nuclear cores, it was never found. Although the weapon type remains undisclosed, Mark 15 thermonuclear bombs (commonly carried by B-47s) would have had a combined yield of 3.4 megatons.
Stray 4&5: somewhere in a North Carolina Swamp
On January 24, 1961, a B-52 carrying two 24-megaton nuclear bombs crashed while taking off from an airbase in Goldsboro, North Carolina. One of the weapons sank in swampy farmland, and its uranium core was never found despite intensive search efforts to a depth of 50 feet. To ensure no one else could recover the weapon, the USAF bought a permanent easement requiring government permission to dig on the land at anytime.
Stray 6: the Incident in Japan
On December 5, 1965, an A-4E "Skyhawk" attack aircraft carrying a 1-megaton thermonuclear weapon (hydrogen bomb) rolled off the deck of the U.S.S. Ticonderoga and fell into the Pacific Ocean. The plane and weapon sank in 16,000 feet of water and were never found. 15 years later the U.S. Navy finally admitted that the accident had taken place, claiming it happened 500 miles from land the in relative safety of the open seas. This turned out to be not true; it actually happened about 80 miles off Japan’s Ryuku island chain, as the aircraft carrier was sailing to Yokosuka, Japan after a bombing mission over Vietnam. After disclosed by media, it caused a political uproar in Japan, which prohibits the United States from bringing nuclear weapons into its territory until now.
Stary 7&8: into the ocean mysteriously
Spring, 1968. While returning to home base in Norfolk, Virginia, the U.S.S. Scorpion, a nuclear attack submarine, mysteriously sank about 400 miles to the southwest of the Azores islands. In addition to the tragic loss of all 99 crewmembers, the Scorpion was carrying two unspecified nuclear weapons – either anti-submarine missiles or torpedoes that were tipped with nuclear warheads. These could yield up to 250 kilotons explosive power (depending which kind of weapon was used). (Qiulin)