In the last couple of years, millions of Americans have sent their spit in a tube to companies like Ancestry and 23 and me to "see" where their DNA came from. The underside of this novelty is these companies sell your DNA to private and public entities.The largest buyers of your DNA to date appear to be P&G Beauty and Pepto-Bismol, universities, and government DNA data banks. The scale and profit are really mind-boggling. For instance, a...
