Feds, states expand DNA testing

Law enforcement officials are vastly expanding their collection of DNA to include millions more people who have been arrested or detained but not yet convicted. The move, intended to help solve more crimes, is raising concerns about the privacy of petty offenders and people who are presumed innocent. New York Times in the Daily News.

Until now, the federal government genetically tracked only convicts. But starting this month, the FBI will join 15 states that collect DNA samples from those awaiting trial and will also collect DNA from immigrants who have been detained - the vanguard of a growing class of genetic registrants.