Guest: Cynthia Fox.

The race is on. All over the world the use of stem cell therapies is being put under extensive study—and a good deal of practice as well. Today on Focus, award winning science writer Cynthia Fox talks stem cell experimentation and her book Cell of Cells: The Global Race to Capture and Control the Stem Cell.

Guest: Eve Herold.

Many diseases involve the degeneration and death of cells in the body. Advocates in stem cell research claim that these cells could be replaced by healthy, functioning ones—but it would come at a controversial cost. This morning on Focus we'll talk the pros and cons of stem cell research with Eve Herold, author of Stem Cell Wars.