Baby DNA gathered without parental consent

I watched a special on TV last night that mentioned there was a law that our former president just signed into law last year. Every newborn's DNA can be collected by hospitals for a government "bio-bank" without parental consent. And then earlier this morning, I did some more research and discovered that Bob Barr had also discussed this topic in the AJC:

Once it is collected, the DNA is considered government property. I have a huge problem with this ultimate invasion of privacy. Using this, the government can know information about not only the baby, but the parents and ancestors of the babe. That is way more information than I think the government has the right to collect without my consent. Again, I wouldn't protest this so much if we had the option to give consent... and even to revoke that consent later if we find our data is being used in ways with which we disagree.

Don't get me wrong, I can see the benefits that having access to such a database could provide scientists. I think it could help them solve many sorts of genetically passed diseases. No human is perfect, which means no government is perfect. Some horrible things that, in my opinion, tarnished our nation's reputation have been done in the name of our national security. These things were done without my consent as a citizen, and I had no power to keep them from happening. However, one of the traditions of our country is that to do anything with one of our children, you MUST have the consent of the parent(s) or guardian(s).

My DNA should not be government property without my consent, and now if I decide to get pregnant, I don't have any choice in the matter. In my libertarian leaning heart, this smacks of government invasion into my privacy, and I'm completely unhappy with the idea that I have no recourse other than to file an expensive lawsuit to challenge this law, which is something that, unfortunately, I can't afford these days.

I would love your feedback on this topic, and from many different perspectives, especially if you disagree with me. I'm still forming my opinion about this one, but my gut instinct is that my potential baby's DNA should never be government property without my consent.