Why is everyone referring to the example of the drivers license. In fact, that is exactly the issue to be feared. How soon everyone has forgotten about the National ID system through the states driver's licenses.
http://www.dojgov.net/national_license-01.htm
Yes, the drivers license is a great example but not in the way that folks have nonchalantly posted. The Federal control over the states driver's license could easily sometime in the near future end up with the National ID program.
The ONLY reason it is not yet a reality is because of the power of states opposing these Federal regulations.
So, go for it if you want the temporal privileges that this bill will give you, but do remember that the Feds never give you something without strings attached.