I'm with Jefferson on the eternal vigilance. The same people who said gun owners were crazy to think people were trying to seize all guns only a year or two later came out and said that very thing themselves in many quarters, from rolling stone to a (!!!) SCOTUS justice. James3v6 actually did an excellent composite meme pulling together a half dozen of those lying deceitful s**ts in their own words.
We're speaking of a public in which the majority that says we should database everything or even ban it outright is slightly above 50% - around the same percentage of college students that have been persuaded to sign petitions at a booth to ban dihydrogen monoxide.
You get about the same dimwitted numbers out of college students on socialism too :-O
I am in no way reassured. I think that quite answers your objection.