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All Americans are allowed to possess $100 bills in their full detail. There are all kinds of restrictions on what we can do with them, but we can possess them and look at them any time we like.

Resolution isn't much of an issue either. Absent watermarks, there are lots of nice upsampling algorithms.



Your last is one reason for the microprint on the bills. You can't upsample "into" microprint, except on CSI/NCIS type TV shows...




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