the Federal Bureau of Prisons 191 Fed. Appx 639 (lir Cir. 2006), Ajaj v. United States 293 Fed.Appx. 575 (10th Cir. 2008). 112. In Rezaq, et at v. Halley, et al, the plaintiffs brought Eighth Amendment claims concerning their placements at ADX at various dates between 1997 and 2003. The District Cour