1972年,美国总统尼克松戏剧性地访问北京时,人们注意到,有一个黑皮包如影随形地一刻也不离开他;有时由总统身边的军事助理携带,有时则由尼克松随身携带。而谁都没有见到尼克松打开过这个黑皮包。还有一次,这个黑色皮包也使见多识广的新闻记者大惑不解:前年,里根总统遇刺时,在新闻记者抢拍到的现场照片中,有个镜头给人特别深刻的印象,那就是枪声乍起,紧跟在总统身边的军事助理立即紧紧抓住一个黑色公事包趴在地上。这个黑色皮包到底是什么东西呢?原来,这个黑色公事包,美国人戏称为“橄榄球”。它的重要性在于美国一旦遭到核攻击时,能够立即指示总统该如何采取应变措施,使美国不致 In 1972, when President Nixon visited Beijing in dramatic manner, people noticed that there was a black leather bag that did not leave him for a moment in time; it was sometimes carried by military assistants near the President, and sometimes carried by Nixon. Nixon did not see anyone opened the black bag. And again, this black bag puzzled informed journalists: the year before last year, when President Reagan was assassinated, there was a scene in the spot photos taken by journalists that gave a particularly impressive impression It was the first shots that immediately followed the president’s military aide and immediately grabbed a black briefcase onto the floor. The black bag in the end is what things? It turned out that the black briefcase, the Americans dubbed “rugby.” Its importance lies in the fact that once the United States has been subjected to a nuclear attack, it can immediately instruct the President on how to take contingency measures to prevent the United States from