Al Mutarreb v. Holder, 561 F.3d 1023 (9th Cir. Apr. 6, 2009) (BIA is not authorized to find facts in the course of deciding appeals), citing 8 C.F.R. 1003.1(d)(3)(i), (iv); Matter of Adamiak, 23 I. & N. Dec. 878, 880 (BIA 2006).