>> when we visited iowa state penitentiary, we found the prison attempts to provide services for a wide range of religious beliefs. >> a lot of the religions are a quieting, mellowing, peaceful type of thing. for them to pray, to see god answer something is to have something answered is empowering. >> then we met an inmate named travis wolfkill. >> in the name of satan, ruler of the earth, the king of the world, i command the forces of darkness to bestow the infernal power upon me. >> i'm in a satanic group here. there are only about four of us. it's a real small community. the church of satan is about enjoying life. it's about doing what you want to do. we believe in indulgence rather than abstinence. we believe in doing what makes us happy and what improves the quality of our life. >> such an attitude may have