North Korea diplomacy

A source says the president was referring to future penalties, not those imposed Thursday against two Chinese companies for illicit support of North Korea in violation of international sanctions.

The breakdown in talks between President Trump and North Korea's leader Kim Jong Un may turn out to be a blessing in disguise, writes Gary Samore, an experienced negotiator with North Korea.

Joel Wit, a former State Department official who played a key role in negotiating and implementing the 1994 denuclearization deal with North Korea, writes about important lessons.