Skip to main content
Back to Show
PBS News Hour

Three-parent DNA treatment for rare defect raises debate

When women have defective mitochondria, their children can inherit terrible, sometimes fatal problems. A new technology, pioneered in England, adds healthy cellular structure from a third person, meaning that children are born with DNA from three people. William Brangham learns more from Jeffrey Kahn of Johns Hopkins University and Marcy Darnovsky of the Center for Genetics and Society.

Support Provided By
Season
December 27, 2025 - PBS News Weekend full episode
26:45
December 27, 2025 - PBS News Weekend full episode
December 26, 2025 - PBS News Hour full episode
57:46
December 26, 2025 - PBS News Hour full episode
December 25, 2025 - PBS News Hour full episode
57:46
December 25, 2025 - PBS News Hour full episode
December 24, 2025 - PBS News Hour full episode
57:46
December 24, 2025 - PBS News Hour full episode
December 23, 2025 - PBS News Hour full episode
57:46
December 23, 2025 - PBS News Hour full episode
December 22, 2025 - PBS News Hour full episode
57:46
December 22, 2025 - PBS News Hour full episode
December 21, 2025 - PBS News Weekend full episode
26:45
December 21, 2025 - PBS News Weekend full episode
December 20, 2025 - PBS News Weekend full episode
26:45
December 20, 2025 - PBS News Weekend full episode
December 19, 2025 - PBS News Hour full episode
57:46
December 19, 2025 - PBS News Hour full episode
December 18, 2025 - PBS News Hour full episode
57:46
December 18, 2025 - PBS News Hour full episode
December 17, 2025 - PBS News Hour full episode
57:46
December 17, 2025 - PBS News Hour full episode
December 16, 2025 - PBS News Hour full episode
57:46
December 16, 2025 - PBS News Hour full episode
Active loading indicator