North Korea lacks means for nuclear strike on U.S. - experts

WASHINGTON (Reuters) - North Korea's explicit threats this week to strike the United States with nuclear weapons are rhetorical bluster, as the isolated nation does not yet have the means to make good on them, Western officials and security experts say.

Pyongyang has slowly and steadily improved its missile capabilities in recent years and U.S. officials say its missiles may be capable of hitting outlying U.S. territories and states, including Guam, Alaska and Hawaii.