Turmoil Continues To Spread Through The Mideast And North Africa

Rumors are swirling that Libyan leader Moammar Gadhafi has left the capital of Tripoli, where a main government building is burning.

In Bahrain, protesters are calling for the entire ruling monarchy to step down, following a week of clashes that has left at least eight dead and hundreds injured.  Yemen's embattled president rejected calls to step down, comparing deadly anti-government protests to a virus that has swept the region.

And British Prime Minister David Cameron has arrived in Cairo to meet with Egyptian leaders to make sure a genuine transition to democracy is occurring.  We speak with the BBC's James Reynolds, who is watching the region from London.