Comment Re:Gun nuts (Score 1) 1374
Your hypothetical example *would* in fact set implicit bounds on the constitutional right to keep and read books. An absolute right to keep and read books would simply leave that justification out. But with it, it is clear that the state is prevented from restricting this right only in so far as democracy could be affected.
Under an absolute right to keep and read books, books detailing state secrets, how-to literature on serious criminality and hard pornography (to give only some examples) would be constitutionally protected. But they are generally not necessary or even helpful for a working democracy, and so - due to the justification part of your right to keep and bear books - a simple law on the federal, state or local level could restrict them, as long as it is specific enough and maybe has a few necessary exceptions.
Similarly, the US constitution only protects the right to keep and bear arms to the extent that it is beneficial for well regulated militias. Given the very limited number of occasions for unorganized shooting practice in downtown Chicago or New York City, it is perfectly reasonable to have strong restrictions there. These restrictions are not going to affect the fighting power of the National Guard at all.
Here is another example:
A well trained army, being necessary to the security of a free State, the right of the people to keep and drive Cars, shall not be infringed.
This would not imply that people can drive while drunk or without a license, that they can drive where they want or as fast as they want (I am actually writing this from my home country, where people *are* allowed to drive as fast as they want on a large part of the motorway system), that children can drive, or that someone's driving privileges cannot be suspended. It just means that everything is organised so that normal people normally have no trouble buying cars, getting the necessary permits, and finding roads where they are allowed to drive.
However, this example shows that even without the prefixed justification such a right always comes with implicit restrictions. Even under an amendment to the effect, "The right of the people to keep and drive cars shall not be infringed", you would still not be allowed to drive drunk, without a license, or off-road on public land.