The privileges and immunities clause says that states must give the same privileges to citizens of other states that they do to their own citizens. Since states have always allowed free entry and exit to their own citizens (and indeed, the right to enter is intrinsic to the concept of citizenship), it follows that states cannot restrict the freedom of citizens of other states to enter the state. And the right to travel is moreover consistent with what the framers were trying to do with the Constitution: tear down internal barriers between states.
Privacy does not fit in there because no state has ever granted its own citizens the notion of privacy espoused by certain modern proponents of the "right." Nor can you read the contemporaneous works of the framers and see any discussion of this idea that people should be able to keep certain information private from the government. Instead, in the 4th amendment you see a much narrower concept: that the government shouldn't be able to trespass on your property without a warrant.
Not all rights are enumerated in the Constitution. But that doesn't mean you can make up a right and say the Constitution protects it. The right has to come from somewhere. Otherwise, "rights" become an end-run around democracy. Oh, ACA is unconstitutional because people have a "right" not to be forced to buy health insurance. Oh, you can't require background checks for gun purchases, despite the vast majority of Americans supporting them, because the Second Amendment prohibits that.
> Privacy does not fit in there because no state has ever granted its own citizens the notion of privacy espoused by certain modern proponents of the "right."
So, if a state did that, we would have a right to privacy from, at least, state and local government? We would only have to worry about federal warrants? That would be a step forward. And do we not have a federal right to travel? Would internal passports be kosher? Residency permits?
As for the framers and encryption, some of them knew how to encrypt documents and did in fact use cryptograms to encrypt their notes, not for communications purposes, and would not have hesitated to use cryptograms against government investigations. One-time pads were developed in the 19th c. and remain unbreakable if properly implemented.
But that's beside the point. They surely did not have airplanes, and if you adhere to reasonable regulations, you have a right to fly through the air, found nowhere in the Constitution.
Also, as far as I know, it's not a crime not to buy health insurance. I'd be taxed for not doing so. Background checks, like the required training for pilots, would be a reasonable regulation. As long as the laws are not discriminatory or impose a de facto prohibition, they are constitutional. This is unlike some of the laws regulating abortion providers that are clearly meant to drive them out of business. Those are unconstitutional, because women have a right to control their bodies derived from the right to privacy.
Privacy does not fit in there because no state has ever granted its own citizens the notion of privacy espoused by certain modern proponents of the "right." Nor can you read the contemporaneous works of the framers and see any discussion of this idea that people should be able to keep certain information private from the government. Instead, in the 4th amendment you see a much narrower concept: that the government shouldn't be able to trespass on your property without a warrant.
Not all rights are enumerated in the Constitution. But that doesn't mean you can make up a right and say the Constitution protects it. The right has to come from somewhere. Otherwise, "rights" become an end-run around democracy. Oh, ACA is unconstitutional because people have a "right" not to be forced to buy health insurance. Oh, you can't require background checks for gun purchases, despite the vast majority of Americans supporting them, because the Second Amendment prohibits that.