Obama vows to "rally the world" against Islamic State
In his weekly radio address, U.S. President Barack Obama says the United States and a broad coalition of nations are coming together to combat the threat posed by Islamic State. Rough Cut (no reporter narration).
Ebola lockdown brings Sierra Leone capital to a halt
Streets in the capital of Sierra Leone are deserted as the West African state begins a contested, three-day lockdown in a bid to halt the worst Ebola outbreak on record. Sarah Toms reports.