Sudanese riot policemen stand guard outside the US embassy in Khartoum during a protest against an amateur film mocking Islam on September 14, 2012. Two protesters were killed as security forces used tear gas against thousands of demonstrators angered by the anti-Islam film 'Innocence of Muslims' as they tried to approach the US mission after the British and German embassies were stormed earlier. AFP PHOTO/EBRAHIM HAMID        (Photo credit should read EBRAHIM HAMID/AFP/GettyImages)