The US government is increasingly concerned that North Korea rapidly developing its nuclear industry to attack America and its allies, according to American officials.

The aggressive testing regime of medium - and long-range missiles and its nuclear tests - North Korea are doing now "practical" threat and not "theoretical" threat, according to one U.S. official.

It is essential that North Korea no longer cares about what the world sees their test failures, in accordance with the latest tests, allowing Pyongyang more openly, persistently and repeatedly to test all the key components necessary to attack. As a result, the regime has the ability to keep the US and allies "in tension" with nuclear weapons, said a U.S. official.

At the moment, the US found out that North Korea has achieved warhead miniaturization, which is important for a missile attack. New satellites images from the web site 38 North reveal nuclear activity at the site of North Korea, showing that the canopy was erected to block the view of spy satellites the United States.

In recent tests of missiles, North Korea released: mobile missiles, which are difficult to track, submarine launched missiles, which are also difficult to track, and Intercontinental missiles that could potentially reach Alaska.
sections: Politics, World News, Accidents