You're right, you don't know.
How have your 4th Amendment rights been violated/voided, specificly?
Are you FORBIDDEN from being secure in your "person" by the new Homeland Security Agency? Of course not.
So the government is going to merge its existing databases. Ooooh, scary. Gee, the freaking sky is falling.
Oh my gosh, the government is now going to monitor public data traffic on the government-funded public internet much like highway patrolmen monitor auto traffic on government-funded highways. Quick, call the ACLU!
< /SARCASM >
Some people fall for the least little left-wing propaganda. All that a liberal has to do is to pretend to be MORE conservative than anyone else in the room and "poof!", a few wayward souls will always seem to buy into such flimsy arguments (e.g. "all of our privacy is gone forever and the jack booted thugs are coming to get me in their black helicopters").