The measure targets travel of militants abroad as well as recruiting and funding for extremist groups. It was adopted at a meeting chaired by President Obama.
After more than a month of airstrikes by the U.S., the extremist group still controls nearly a third of Iraq, including the city of Mosul. But residents there say the bombings are lifting morale.
President Obama has been reluctant to call it a war, yet the administration and the Pentagon boast of a 40-nation coalition and warn of a military operation that could last for years.
Former Archbishop Jozef Wesolowski, who was defrocked earlier this year, has been accused of paying for sex with children while he was papal ambassador to the Dominican Republic.
More than 120 leaders are expected to attend the one-day summit sponsored by the United Nations. They have been instructed to arrive Tuesday with "bold ideas" to slow the rise in global temperatures.
Heads of state from well over 100 countries came to New York City this week to find ways to slow climate change. The summit is a dry run for a meeting next year to draft a treaty on global warming.
Big aid agencies are gearing up to help Ebola-ravaged countries. Small communities are also pitching in. The Y in Missoula, for example, is raising money to help the Y in Freetown.
The Centers for Disease Control and Prevention said on Tuesday that West Africa could have more than a million cases of Ebola by the end of January 2015 — if nothing is done to slow down the epidemic.
It costs $35 million a week to feed Syrian refugees but the coffers are almost bare. Steve Inskeep talks to Muhannad Hadi of the World Food Program about the looming food shortage for Syrian refugees.