Wednesday, we're talking about the LDS Church's new statement on the policy that banned black men from the priesthood for some 125 years. When it was lifted in 1978, there was little explanation why blacks had been excluded. This statement makes it clear though: it was a policy born of racial prejudice and the Church is clearly disavowing arguments that were used to support it. We'll explore some questions this is raising about the nature of revelation, the fallibility of leaders and the implications for other social issues.