WASHINGTON/VIENNA (Reuters) - The United States said on Wednesday that North Korea's nuclear program and the increased range and precision of its missiles were of great concern, a day after the isolated Asian country said it had the power to deter a U.S. nuclear threat with a pre-emptive strike if necessary.
The U.S. mission to International Organizations in Vienna, home to the U.N's International Atomic Energy Organisation, said the restart of North Korea's graphite-moderated nuclear reactor could enable it to produce additional plutonium for weapons in the near future.