"An unnamed spokesman for the North Korean army is warning the U.S. that its military has been cleared to wage an attack using "smaller, lighter and diversified nuclear" weapons in the latest of the country's escalating warnings. North Korea has railed for weeks against joint U.S. and South Korean military exercises taking place in South Korea and has expressed anger over tightened sanctions for a February nuclear test.The spokesman said in a statement carried by the Korean Central News Agency that troops have been authorized to counter U.S. aggression with "powerful practical military counteractions." The Pentagon said Wednesday it was deploying a missile defense shield to Guam to protect the U.S. and its allies in the region in response to the increasingly hostile rhetoric."
Source: http://www.foxnews.com/world/2013/04/03/north-korea-warns-military-cleared-to-wage-nuclear-attack/