North Korea Warns U.S. Over Biden's 'Big Blunder'

North Korea warned on Sunday that the United States will face a grave situation if it continues to pursue its "hostile policy" toward Pyongyang's nuclear program. The statement, attributed to Kwon Jong Gun, head of the Foreign Ministry's department of U.S. affairs, comes as the Biden administration is set to unveil a new strategy to deal with the isolated Asian nation.

The statement said President Biden made a "big blunder" when he called North Korea's and Iran's nuclear programs a security threat during a speech before a joint session of...