But by the '60s the ICBM had become routinized as the delivery vehicle for nuclear warheads and everyone realized that super-fast interceptors (and supersonic bombers) were kind of pointless.

但是到了六十年代末，洲际导弹已经成了核弹头的主流运载工具。大家都认识到超高速截击机(和超音速轰炸机)已经没有意义。

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For instance, when the US reacted to North Korea's 2006 nuclear and ICBM tests by reinstating the six-party talks in the hopes of appeasing Pyongyang, Iran learned that by exhibiting an interest in engaging the US on its uranium enrichment program it could gain valuable time.

CENTERFORSECURITYPOLICY: Israel and the Axis of Evil

Mr. Hagel didn't specify when U.S. military and intelligence analysts believe Pyongyang will have an ICBM capable of carrying a nuclear warhead.

WSJ: U.S. to Boost Missile Defenses in Response to North Korea

Mr. Hagel did not say when the Pentagon believes North Korea will have an ICBM that can carry a nuclear warhead, but said the Pentagon would stay ahead of Pyongyang's military developments.

WSJ: U.S. to Boost Missile Defenses in Response to North Korea