A debate has long circled around the proposition that American prison systems at state and federal levels need counter-radicalization programs. The hypothesis claims that circle-talking and counseling will preempt the manipulation of predisposed inmates by predatory visiting prison imams, or by fellow Islamists inside.
This 2013 Naval Postgraduate School study by Tennessee's Assistant Commissioner of Prisons Tony Parker established that America's prison systems offered no counter-radicalization programs despite attacks carried out by radicalized inmates. The study argued in favor of such programs after examining programs in Saudi Arabia and Singapore, where more carrot than stick is applied to nudge jihadists toward productive roles in society.
Unfortunately, as opponents of such prison deradicalization intelligence programs point out, no one can ever show that these soft approaches actually reduce the high-consequence risks associated with the jihadist impulse to kill. Tallying bad events that never happened because programs prevented them is inherently challenging.