The goal, justice officials said, is to make the practice of DNA sampling as routine as fingerprinting for anyone detained by federal agents, including illegal immigrants. Until now, federal authorities have taken DNA samples only from convicted felons.

...

“Obviously, the bigger the DNA database, the better,” said Lynn Parrish, the spokeswoman for the Rape, Abuse and Incest National Network, based in Washington. “If this had been implemented years ago, it could have prevented many crimes. Rapists are generalists. They don’t just rape, they also murder.”

Boy do I not like the sound of this. Detained by TSA on your way back from France? "Put your DNA in this database. Trust us, it will only be used for good. We would never dream of misusing the data about your entire genetic makeup.

It's just like a fingerprint!"

Jesus. Welcome to the U.S. of Fear, Paranoia and Surveillance.

U.S. Set to Begin a Vast Expansion of DNA Sampling - New York Times