USA. Lake Worth, Florida. 2019. CEO of GEDmatch, Curtis Rogers, a retired octogenarian who runs the largest, public DNA database in the U.S. out of this three-room bungalow. It is a mixture of high-tech DNA analysis, high speed computer technology, and old fashioned family genealogy pioneered by some quirky collaborators who got into it as a hobby. In just six months, it has opened up a new frontier in criminology and also raised questions about privacy and the ethics of using DNA.