The much-awaited Pew report is out.  Public Safety, Public Spending: Forecasting America's Prison Population 2007-2011 predicts a 13 percent jump in state and federal prison populations in the next five years.  The report examines national and state trends (including state by state projections), operational and capital costs, and the relationship between incarceration and crime rates.  Projecting a potential additional cost to taxpayers of $27.5 billion over the next five years, the report showcases states that are examining the performance of their sentencing and corrections systems to improve their outcomes.