Watch much more of our conversation with Rev. Robert Graetz, who calls the Montgomery bus boycott a spiritual movement based on love and nonviolence that transformed the hearts of people across the country.

Benyamin Cohen wrote a book about his year-long exploration of Christianity and used what he learned to reflect on the meaning of his own Jewish faith.

"There are moments when we must challenge the laws of society," says Bishop Minerva Carcano of the United Methodist Church's Desert Southwest Conference.

Benyamin Cohen wrote a book about his year-long exploration of Christianity, and he used what he learned to reflect on the meaning of his own Jewish faith.

Episcopalians will debate a proposal that would allow churches to conduct same-sex weddings in the six states that have legalized gay marriage. Most mainline denominations don't officially allow same-sex weddings. But the changing legal situation is adding new pressure.

They were once called circuit riders--itinerant preachers who went from town to town in 19th-century America to spread the Gospel.