This hour, we'll look at why at least a couple of million people have paid $99 (and often lots more) to have their DNA tested to find out about their ancestry and in some cases, their family's health traits.   Leading web sites and have had more than a million people each pay the fee to receive long and detailed reports on their ancestry going back usually five generations.

Euan Slorach

When Henrietta Lacks died in 1951, her family had no idea that her cells would live on indefinitely…multiplying to the extent that laid together, they could wrap around the Earth at least 3 times. Today on River To River - the immortal life of Henrietta Lacks. Host Ben Kieffer talks with Lacks’ grandson about Henrietta's legacy. Her grandson, David Lacks Jr., will speak tonight in Iowa City as part of the Iowa City Book Festival.

Why are you an Iowan? How did your family wind up here? What is the explanation in your family lore? If you wanted to verify the tales, how would you do it? Wednesday on Talk of Iowa, host Charity Nebbe will speak with Theresa Liewer of the Iowa Genealogical Society and Steve Williams of about genealogical research, the things you can learn from it and what resources are available in the state.