Sectarian Tensions Flare in Egypt

12 people died and hundreds were injured in sectarian clashes yesterday in Cairo. The violence was the result of longstanding tensions between Muslims and Coptic Christians in Egypt. Those tensions were softened in the immediate aftermath of the ouster of Hosni Mubarak in February.  David Kirkpatrick, Foreign Correspondent for The New York Times, says the violence has slowly crept back into the lives of residents in Cairo.