MONTGOMERY, Ala. (AP) — The Alabama prison system has moved three well-known inmate activists who supported a 2022 prison strike and were featured in an Oscar-nominated documentary about the troubled system to isolated cells with little contact with others, family members and attorneys said. The transfers come as some groups have encouraged a new prison labor strike this year. The Alabama Department of Corrections cited security concerns as the reason the men were moved, but did not elaborate. Thousands of Alabama inmate workers went on strike that year, refusing to labor in prison kitchens, laundries and factories to protest conditions in the state lockups. The prison system said in a statement that food service has been contracted out to a new vendor, Aramark, but didn’t elaborate.