"The federal prison system is by far the nation’s single largest jailer, with a total of 205,795 inmates at the beginning of October 2015. That’s roughly 50,000 more people in custody than in the second-largest prison jurisdiction, Texas. Though the states collectively incarcerate the majority of people in prison in the United States—nearly 1.4 million as of 2014—any conversation about mass incarceration must consider the federal prison population. The growth, size, and cost of the federal system jeopardize the safety and security of inmates and staff, restrict the ability to provide programs designed to reduce recidivism, and crowd out other fiscal priorities … [this Forecaster] uses Federal Bureau of Prisons (BOP) data and incorporates trends and recent changes in the federal criminal justice system to forecast population trends and the impact of changes to rates of admission or lengths of stay. This tool is designed to highlight the unique drivers of the federal prison population and the types of policy changes that will be necessary to reduce the BOP population. All numbers reported in this feature (unless otherwise noted) are from the end of fiscal year 2014, and all projections are of impacts through 2023.