The latest news on nuclear weapons
Pentagon has "moderate confidence" North Korea can fit a nuclear weapon on a ballistic missile.
'Special mechanism' exists to communicate with China, South Korean official says.
Congressman may have quoted accidentally unclassified assessment.
It might have nukes, but North Korea can barely keep the lights on.
Key observations about what North Korea's latest belligerence means for the U.S.
The U.S. must stand with South Korea while not provoking the North.
It may be time to call North Korea's nuclear bluff.
Former veep says U.S. is in ‘deep doo doo’ over nuclear threats.
The days of dismissing North Korean threats are over, writes House Foreign Affairs Committee Chairman Ed Royce.
Heated North Korean rhetoric could fuel an altercation.