SALT LAKE CITY -- Evidence of an explosion of interest and technology is the best way to describe the RootsTech genealogy conference, which runs through today at the Salt Palace Convention Center in Salt Lake City.
When they run into those inevitable brick walls in search of their ancestors, more and more genealogists are turning not to census data, military logs or death notices.
They're spitting into vials.
Genetic testing can enable researchers to identify living people with whom they share common kin and figure out where in the world distant ancestral homes were and long forgotten ethnic roots.