1193 Moreover, even voluntary acquisitions may generate litigation over valuation matters or the sufficiency of appraisals. See, e.g., Desert Citizens Against Pollution v. Bisson, 231 F.3d 1172 (9th Cir. 2000).1194 E.g., United States v. 8.34 Acres of Land in Ascension Par., No. 04-50D-MI, 2006 WL 6860387, at *4 (M.D. La. June 12, 2006); see Kirby Forest Indus., Inc. v. United States, 467 U.S. 1, 10 (1984).