Editorial: North Korea economic crisis opening a lane for diplomacy, denuclearization

In his first congressional address last week, Mr. Biden said the nuclear programs of Iran and North Korea posed a “serious threat to America’s security and world security” and promised to respond through “diplomacy and stern deterrence.” His administration has also completed a review of the U.S.’s North Korea policy. Mr. Biden is likely to steer between Barack Obama’s “strategic patience” and Donald Trump’s top-level summitry in dealing with the North Korean nuclear challenge.