According to a pre-launch analysis by David Wright of the Union of Concerned Scientists, this kind of rocket might carry a small warhead to parts of Alaska, 6, 000 kilometers (3, 730 miles) from Pyongyang, but it could not hit Los Angeles, 9, 570 kilometers (5, 945 miles) away.

CNN: Commentary: North Korean launch not a cause for panic

Putting a satellite into orbit on a long-range rocket as it did in December is a lot different from delivering a warhead to a desired location on such a rocket.

WSJ: North Korea Puts Artillery Forces on Combat Alert

Police have recovered a rocket launcher and what they have described as a warhead in west Belfast.

BBC: Hawthorn Street

An interceptor missile launched over the Pacific Ocean, designed to destroy a dummy warhead, failed to separate from its booster rocket early Saturday.

CNN: US - After test fails, Russia again urges U.S. to drop missile shield proposal