Professor Henry T. "Hank" Greely was interviewed for Nightly News with Brian Williams about genetic testing for illness and its ramifications. The segment "Testing Your Genes" aired Tuesday, Feb. 12 as part of a special NBC Nightly News series:

Testing your genes: Tests that examine your risk of developing a disease are widely marketed, but doctors often don't know what to tell patients after they receive their results — and many doctors disapprove of the tests altogether. NBC News interviews a patient who took one such test, but got no advice after the test yielded a positive result.