Read the article...it says "containing DNA codes of criminal offenders," not ordinary citizens. Don't get your pants in an uproar!
And the income tax was only 3% when it started too. I don't want to even come off as condescending but you must admit that many a good intentioned program has been blown out of proportion in our government. Many times over I have seen the Police State of New York encroach upon its citizens with laws that only ever become more and more restrictive.
I would love it if before I die that I meet a president who says "Let me tell you about the laws I want to do away with or return to their original boundaries."