The Constitution forbids creating ex post facto laws, meaning no one can be prosecuted for actions that were legal at the time they were committed. This principle protects individuals from retrospective laws that retroactively change the legality of their actions. In contrast, other governmental actions mentioned are allowed by the Constitution. ;
The Constitution prohibits creating ex post facto laws, which means laws that penalize actions retroactively. This protects individuals from being punished for actions that were legal when committed. Other options like borrowing money or regulating trade are allowed by the Constitution.
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