Conservative Christians are attacking Tim Keller for his winsome, non-partisan approach to Christianity. They say winsomeness may have worked in the past, but now the culture war is so dangerous that we need a more aggressive and offensive approach. Are they right? Skye interviews Eboo Patel, the founder and president of Interfaith America, about his new book "We Need to Build: Field Notes for Diverse Democracy." Patel, a Muslim-American, talks about the transformative role Christianity had on his calling, why interfaith cooperation is essential, and what concerns him about the current culture of activism in America.