U.S. officials will have to consider the consequences of new sanctions as they weigh how to address Iran’s regional policies without derailing implementation of the nuclear accord, says expert Richar…

Pope Francis will use his upcoming high-level visits to the U.S. and UN to press the concerns of the poor and marginalized, says expert Kenneth Himes.

Sustained diplomacy led to the Iran nuclear deal, but it’s too soon to expect broader discussions between Tehran and Washington, says expert James Dobbins.

The Iran nuclear deal and subsequent UN Security Council resolution do little to bind the United States legally, though policymakers would face political pressure against reinstating sanctions, says …

The pope’s encyclical on the environment carries a profoundly religious message about care for the earth, wedded to a new call for activism, say religious scholars Mary Evelyn Tucker and John Grim.