Despite increasingly tough international punishment, Pyongyang's missile and nuclear programs have only grown more sophisticated.

The interim nuclear deal between Iran and the P5+1 nations is facing domestic criticism in Iran and the United States. Continued political opposition to the agreement could complicate and even jeopardize future talks.

There's debate over sanctions relief to Iran ahead of more nuclear talks in Geneva. But are sanctions effective? Suzanne DiMaggio writes for the New York Times’ “Room for Debate” about how sanctions affected the reform process in Myanmar.