AP Photo

Sectarian domination was not what Egyptian protesters and self-described revolutionaries had in mind when they drove President Hosni Mubarak from office during Egypt’s Arab Spring in 2011. But to underestimate religious sectarianism in the Middle East is to misunderstand one of its core realities. After forcing out Mubarak and electing Mohamed Morsi last June, revolutionaries are back on the streets, this time with cries of “Leave, leave, Morsi.”