In recent years, immigration has transformed the face of religious diversity in the United States. No longer do religious fault lines cut primarily between variants of Christianity and Judaism and the lines that Christians historically drew between themselves and the indigenous peoples they found already settled in the Americas. Instead, the new immigration tosses a set of theologically disparate world religions—Islam, Buddhism, Hinduism, and others—into the American melting pot. Princeton sociologist Robert Wuthnow’s newest offering—America and the Challenges of Religious Diversity—explores how and to what effect a “Christian nation” can incorporate religious people whose beliefs are not fully commensurate with Christianity. After briefly tracing a history of religious diversity in the United States, from the European explorers’ construction of natives as “other” to the incorporation of varieties of Christianity through subsequent waves of immigration, Wuthnow confronts the reality of religious diversity in the United States today where conservative estimates suggest that at least 2 million Muslims, 2.4 million Buddhists, and 1.3 million Hindus now live.