In America one drop of black ancestry makes you black.

Wherever you go in the history of America, there have been Black people making contributions, but their contributions have been obscured, lost, buried.

You notice patterns. White guests often are mortified - that word again - when they learn their ancestors owned slaves. But I've never had a black guest who was upset to learn about white ancestry that probably involved forced sexual relations.

Diversity doesn't mean black and white only.

Ever since I watched 'Roots,' I've dreamed of tracing my African ancestry and helping other people do the same.

All of the guests on 'Faces of America' were deeply moved by what we revealed about their ancestry. We were able to trace the ancestry of Native American writer Louise Erdrich back to 438 A.D. We found that Queen Noor is descended from royalty, and that's before she married King Hussein of Jordan.