Sharkey v. Quarantillo, 541 F.3d 75 (2d Cir. Sept. 3, 2008) (district court had jurisdiction to determine whether DHS had followed proper procedure, under 8 C.F.R. 246.1, in rescission of noncitizens LPR status; fact that noncitizen was not properly granted LPR status does not mean DHS can revoke status without following rescission procedures).