Last week, I visited a Muslim place of worship. A schedule for Islam's five daily prayers was posted at the entrance, near a sign requesting that shoes be removed. Inside, a barrier divided men's and women's prayer space, an arrow informed worshippers of the direction of Mecca, and literature urged women to cover their faces. Sound like a mosque? The place I'm describing is the "meditation room" at Normandale Community College, a 9,200-student public institution in Bloomington. A row of chest-high barriers splits the room into sex-segregated sections. In the smaller, enclosed area for women sits a pile of shawls...