De La Cruz v. Maurer, 483 F.3d 1013 (10th Cir. April 3, 2007) (rejecting argument that the INS's failure to apprise him that he was entitled to communicate with Mexican consular or diplomatic officers under the Vienna Convention and immigration regulations violates Article 36(1)(b) of the Vienna Convention on Consular Relations and 8 C.F.R. 236.1(e), on grounds the argument was waived because he failed to assert the issue before the IJ, and, in any event, Torres could not show that the violation resulted in any prejudice).