Teach slave history - Obama
Washington - President Barack Obama says slavery is a terrible part of US history and should be taught in a meaningful way.
Obama compared the legacy of slavery to the history of the Holocaust. He said both are horrible parts of history but shouldn't be ignored. He says in a CNN interview that their lessons must never be forgotten.
Obama returned to Washington early on Sunday morning from a trip that took him to Russia, Italy and Ghana. It was the first trip to sub-Saharan Africa for America's first black president.
Obama and his family visited a West African castle where traders once shipped slaves to the New World.
Obama was interviewed on Saturday for CNN's Anderson Cooper: 360. A brief excerpt was released on Sunday.