t agreement, "intervention for the purpose of challenging confidentiality orders is permissible even years after a case is closed." United States v. Erie Cnty., N.Y., No. 09 Civ. 849S, 2013 WL 4679070, at *6 (W.D.N.Y. Aug. 30, 2013), rev'd on other gds., 763 F.3d 235 (2d Cir. 2014); see also In re Pineappl