Cordova-Soto v. Holder, 659 F.3d 1029 (10th Cir. Oct. 17, 2011) (DHS may reinstate prior order of removal where noncitizen did not obtain Attorney General's permission to re-renter, even if re-entry by driving through a border point and being waved through was procedurally regular; court can only review prior removal order (underlying the reinstatement order) where petition for review was filed within 30 days of the original order).

NOTE: This is a badly reasoned decision because (1) if the petition for review was successful, there would be no reinstatement order and (2) if the petition for review was unsuccessful, the court would likely deny a second, collateral challenge on the merits.
Thanks to Trina Realmuto.