Transcript for North Korea fires intercontinental ballistic missile

We begin with North Korea launching a new missile, flying higher and longer than any it has launched before. Tonight, what it reveals. It's the third icbm launch, the other two in July. The launch, a direct provocation to the U.S. Tonight. President trump responding moments ago. Here's Bob woodruff. Reporter: Tonight, north Korea acts again. And we know president trump was being briefed as the missile wus in the air. What makes this missile different, it flew higher and longer than ever before. 90 minutes after it splashed down in the sea of Japan, the president addressing the provocative move. A missile was launched a little while ago from North Korea. I will only tell you that we will take care of it. It is a situation that we will handle. Reporter: This is north Korea's third icbm launch. It shot 2,800 miles into space, flying for 50 minutes. But experts say if angled for distance instead of altitude, the same missile could reach deep into the U.S. Mainland. It could reach Washington, D.C. And the defense secretary knows that. It's a research and development effort on their part to continue building ballistic missiles that can threaten everywhere in the world basically. They will be met with fire, and fury, like the world has never seen. Reporter: But weeks ago, president trump with a different tone. I really believe that it makes sense for North Korea to come to the table and to make a deal that's good for the people of North Korea and the people of the world. I do see certain movement, yes. Bob, we know it's been 75 days since North Korea launched a ballistic missile. Any indications as to why now, after the president signaled hope for talks while in Asia? Reporter: Just a week ago, president trump relisted north Korea as a state sponsor of terrorism, so they could have

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