An error by Washington state's Department of Corrections that resulted in wrongly calculated sentences for about 3 percent of the prison population led to the early release of more than 3,000 prisoners in the state since 2002.
A corrections officer accused of trying to smuggle in marijuana to an inmate at a southern New Jersey prison is now facing a lengthy prison term himself.
New Jersey's corrections commissioner and directors of several halfway houses say the state has the nation's best "community corrections" system.