As I mentioned, both of those options would make drugs less profitable, which would lead to fewer advances in technology. Prohibiting the reimportation of drugs can be a sensible policy.

> It is horribly unjust for Americans, many of whom have no or poor health insurance, to be forced to pay more money than anyone else on earth for prescription drugs.

Unfair, perhaps, but unjust? Fixing this problem would either require selling to everyone at American prices (which could also be described as unjust), or selling to everyone at the lowest prices available. Both options would be less profitable that the current system, which would slow the rate of advancement in drug development.

> [Maybe] the government should step in and take the lead role in drug development.

That can also be a sensible policy, and the American government already does fund a considerable amount of drug development.