George Goff; Plaintiff-appellee,allen Langley, Class Representative; Tim Thompson, Class Representative; Plaintiffs, v. Charles Harper; Ronald Welder; John Henry; Gerardo Acevedo, Warden; Defendants-appellants.george Goff; Allen Langley, Class Representative; Tim Thompson, Class Representative; Plaintiffs-appellees,michael A. Bartnick; Intervenor Plaintiff, v. Charles Harper; Defendant-appellant,ronald Welder; John Henry; Defendants,gerardo Acevedo, Warden; James Helling; Paul Hedgepeth, Deputy Warden; John Emmett, Security Director; James Mckinney, Deputy Director of Corrections in Charge for Institutions for the State of Iowa; Defendants-appellants, 235 F.3d 410 (8th Cir. 2000)