izens for a Better Environment, 523 U.S. 83, 94-95 (1998), prudential standing questions may be avoided in order to decide a case on the merits. See Nisselson v. Lemont, 469 F.3d 143, 150-51 (1st Cir.2006), cert. denied, 127 S.Ct. 2131 (2007); Fraternal Order of Police v. United States, 173 F.3d 898, 904-