N. Korea missile could hit U.S. in 3 years, Pentagon says

WASHINGTON - North Korea's missiles may be capable of hitting West Coast cities within three years, a top Pentagon official warned Tuesday, but is unlikely to be able to deliver a nuclear warhead in that time frame. The U.S. assessment came as North Korea's rulers show signs of preparing for further weapons tests in the face of international condemnation and new United Nations sanctions. The estimate of three to five years is somewhat longer than horizons estimated previously.