I want to know the answer to the following question:
What weapon does North Korea claim it now has the ability to use?
All the background I'm provided with is that "Speaking on 4 April 2013, the U.S. Secretary of Defense, Chuck Hagel, informed the press that Pyongyang had "formally informed" the Pentagon that it had "ratified" the potential usage of a nuclear weapon against South Korea, Japan and the United States of America, including Guam and Hawaii.". Is that enough to answer the question?
Answer: yes