I always was of the opinion that we could offer some third world countries say 10 thousands each to allow us to deport our criminals to them.
Seem a win win for the poor third world counties not only in term of money but some of our criminals might just end up proving to be useful citizens at least fairly well educated citizens compare to the average of a third world country.
If they do not fit in, I would predict a very high morality rate for them in any case.
We of course would not need to pay the 30 thousands plus a year to keep them lock up and they would not be returning to annoy us at some future date.
If it was good enough for England in the old days why not us?