In the '90s, there was scant presidential leadership and insufficient domestic political mobilization for foreign policy grounded in human rights.

Sanctions did indeed help to bring Iran to the negotiating table. But sanctions did not stop the advance of Iran's nuclear program. Negotiations have done that, and it is in our interest not to deny ourselves the chance to achieve a long-term, comprehensive solution that would deny Iran a nuclear weapon.

The inertia of the governed cannot be disentangled from the indifference of the government. American leaders have both a circular and a deliberate relationship to public opinion.

Because it started as an offshoot of al Qaeda in Iraq, ISIL has long been subject to U.N. sanctions, and all countries have a legal obligation to freeze its assets and prohibit its business dealings. But countries around the world need to do more to make these sanctions work.

Rising anti-Semitism is rarely the lone or the last expression of intolerance in a society.

Rising anti-Semitism is rarely the lone or the last expression of intolerance in a society.