U.S. embassy staff and families evacuated from Sudan

Read MoreU.S. embassy staffers and their families have been evacuated from Sudan. But as the violence continues, fears mount for the estimated 16,000 Americans still stuck in the country. Imtiaz Tyab reports.U.S. embassy staffers and their families have been evacuated from Sudan. But as the violence continues, fears mount for the estimated 16,000 Americans still stuck in the country. Imtiaz Tyab reports.