French geneticist Jerome Lejeune (1926-1994) identified Trisomy 21, the chromosomal anomaly behind Down’s Syndrome. He was also a fierce defender of the right to life for children with Down’s. Here’s a trailer for a documentary about Dr. Lejeune. In itself, it’s a good two-minute overview of his work. For more about the full documentary, check out lejeuneusa.org.