ization are "committed to agency discretion for purposes of 5 U.S.C. § 70I(aX2)," 18 U.S.C. § 4218(d), they arc insulated from judicial review.' See Garcia v. Neagle, 660 F.2d 983, 988-89 (4th Cir.1981); Hackett v. U.S. Parole Comm'n, 851 F.2d 127, 129 (6th Cir.I987) ("The federal court's scope of review over a