The atom bomb is a paper tiger which the United States reactionaries use to scare people. It looks terrible, but in fact it isn't... All reactionaries are paper tigers.

原子弹是美国反动派用来吓人的一只纸老虎,看样子可怕,实际上并不可怕。
  一切反动派都是纸老虎。

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Zedong, Mao. Talk with the American Correspondent Anna Louise Strong. Aug. 1946.