Every serious student of recent American history and religion knows Dr. Martin Luther King Jr.’s quote about racial segregation and Christian churches. But few surely know the ways in which little has changed from King’s day. They would do well to read a CNN article on the subject.Reporter John Blake’s story was one of unusual power and honesty. Rare is the mainstream newspaper article that tells uncomfortable truths about both black and white Christians. This is one of those stories. Consider Blake’s lede: