The Public Safety Performance Project of the Pew Charitable Trusts has done state-by-state and national prison pop projections that it will present in DC on Wednesday. This could serve each state well by having an independent source of numbers that it could point to without having to take the local political heat for any bad consequences. And having the comparisons at one time for the first time I've ever heard of will help us set priorities and precedents for further comparisons of state data. Looking forward to it.
[DISCLOSURE: I serve on a Pew committee. If it's any consolation, though, I really don't contribute much.]