If 16 million have been to prison, this probably doesn't count people who have been to jail but not prison, or who have been given probation and/or community se

If 16 million have been to prison, this probably doesn't count people who have been to jail but not prison, or who have been given probation and/or community service as their sentence, which I suspect is probably where 70 million comes from. Prison is for sentences of longer than 1 year in the U.S. but I'd reckon any sentence affects your job prospects negatively.