This video sheds light on some of the unknowns of direct-to-consumer (DTC) genetic testing. After sending a sample of saliva to the lab, what happens to the sample? How are specific gene markers detected? Although often used to uncover ancestry and potential health implications, DTC genetic testing poses a privacy risk not only to individuals being tested but also to their families. At the end of this video, you’ll be wondering if it's really worth spitting in that tube.