The window of opportunity to prevent North Korea from developing nuclear-armed ballistic missile systems is closing and Washington should explore every serious diplomatic overture from Pyongyang.

North Korea apparently is edging closer to creating a nuclear-armed intercontinental ballistic missile. A key variable is Pyongyang’s determination to achieve that goal...

The Chinese ambassador to the United Nations called North Korea’s attempted launch of an intermediate-range ballistic missile “a clear violation” of Security Council resolutions.

The only realistic way out of the impasse over the North Korean nuclear program is reciprocal steps to open the way to negotiations that would address denuclearization in parallel with a peace process in Korea.

China is proposing “parallel tracks” to address North Korea’s desire for a peace treaty and the international community’s concerns about Pyongyang’s nuclear program.

Following broad international criticism, new punitive measures are promised.