If North Korea gives up its pursuit of nuclear weapons and missile development, and instead chooses a path towards peace and cooperation, our two countries will work together, along with the international community, to help improve the lives of the people in North Korea and provide necessary assistance that will help North Korea open up a new era.

WHITEHOUSE: President Obama and President Lee Hold a News Conference

After any launch, U.S. satellites and radars in the region will be able to calculate within minutes missile trajectory and quickly conclude whether they are on a test path headed for open ocean or potentially headed for land areas, such as Japan, which could then force the United States and Japan to decide whether to try to shoot them down, both officials told CNN.

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