Prison chaplains say religious programs are the key to rehabilitating inmates, according to a new survey by the Pew Forum on Religion and Public Life.
The head of chaplain ministries at the Oregon Department of Corrections says faith helps to cure attitudes that lead to recidivism -- relapsing to former criminal behavior.
Still, the 50-state survey shows prison chaplains have concerns about religious extremism.
More than 40 percent of chaplains say extremism is common in prisons, especially among Muslims.
They also see it on a smaller scale among followers of "pagan or earth-based religions."
The poll of 1,474 professional chaplains was conducted from Sept. 21 to Dec. 23, 2011.