One of the most important aspects of the interfaith movement is raising the bar from mere tolerance (Hey, I'll let you live!) to pluralism, which encourages actual engagement with those of different theologies while still maintaining one's own personal beliefs. For years now, Harvard has measured this movement in the US and occasionally helps those interested in our religious landscape get a better understanding of where we are and the conversations that still need to happen.

In her new book "Pluralism in Practice" Elinor Pierce examines several recent case studies where members of religious groups have had to work out challenging issues with other groups or local governments. Each one is a compelling story in its own right. Theme music "Nigal."