Alan Kaplan teaches history at a public high school in Los Angeles. He talks a lot about race in America, the history of slavery and civil rights. Ten years ago, that talk got Alan into trouble. A group of black parents claimed he was a racist. They called Erin Aubry, a reporter who wrote about race issues, and she was eager to investigate. When she finally landed an interview with Alan, they talked for over five hours. Also in the show: Rehabbing foreclosed homes.