For many pregnant women age 35 or older, doctors recommend prenatal testing for abnormalities. But some procedures carry a risk of causing miscarriages. Dr. Ravinder "Rav" Dhallan is on a mission to take that risk away. He has created a non-invasive DNA-based prenatal test. Also in this episode, a listener reaction to our story of Charles Hickman, an African American man who was strangled with a noose in 2002 by a white co-worker.