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An opposition group in exile says some 200 people are holed up inside the Damascus mosque as government forces close in on rebel-held territory.

After fleeing his native Syria, Mohammad al-Hariri became the most powerful man in the Zaatari refugee camp in Jordan, where more than 120,000 refugees live. Aid workers view him as running a criminal enterprise, but they appear to have little choice but to work with him.

The attack on the five-year-old UNAMID mission is the single-deadliest in the history of the deployment.

Malala Yousafzai, who was shot in the head by militants in October for promoting girls' education, said bullets would not silence her.

The United Nations says more than 45 million people worldwide are refugees — the most since 1994 — and that nearly half are children. Fleeing Syrians are a growing concern.

U.N. Secretary-General Ban Ki-moon also cast some doubt on the United States' claim that the regime of Bashar Assad had used chemical weapons against rebel forces.

Death toll numbers in Syria have been revised higher after a report released by the Human Rights Data Analysis Group. Melissa Block talks to Megan Price, the group's director of research.

The White House says sarin gas has killed up to 150 people in Syria, and that the use of chemical weapons crosses a "red line."

The "shockingly high levels" of killings continue in Syria, says U.N. High Commissioner for Human Rights Navi Pillay. The U.N. puts much of the blame on the Assad regime.

President Obama has named a former journalist and activist to represent him at the United Nations. If confirmed, Samantha Power will replace Ambassador Susan Rice, who is returning to the White House to become national security adviser. Power's supporters see her as a voice of conscience in the Obama administration, an advocate for humanitarian interventions.