Real Clear Religion: Nat Hentoff is a legendary civil libertarian and journalist. He's and atheist and also pro-life. His conversion from pro-choice to pro-life, and the fallout that resulted, is explained in an essay in the new book, The Debate Since Roe: Making the Case Against Abortion 1975-2010. It's a compendium of essays from the journal Human Life Review.
A famous liberal who was a staple at the Village Voice and who had a column in the Washington Post, in the 1980s Hentoff actually let himself be swayed by evidence about abortion. It happened when Hentoff was reporting on the case of Baby Jane Doe.