Changing the DNA of a large, multilateral organization such as the United Nations to deal effectively with modern threats is not easy. Indeed, when the United Nations was created in the wake of World War II, threats came almost exclusively from one state carrying out acts of aggression against another.

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.

U.N. Security Council resolutions are only as effective as their enforcement.

Samantha Power Quotes