discussed Cited "see" United States v. David Malone See United States v. Weekly, 118 F.3d 576 , 581 (8th Cir.) (holding that a conflict in the evidence is, standing alone, “independent evidence to support the district court’s finding that [the defendant] had not truthfully provided all information that she had concerning the offense”), cert. denied, 522 U.S. 1020 , 118 S.Ct. 611 , 139 L.Ed.2d 497 (1997); cf. Ortega v. United States, 270 F.3d 540, 547 (8th Cir.2001) (reversing obstruction-of-justice enhancement imposed solely upon evidence of failed polygraph examination).

discussed Cited "see" United States v. Herrera See United States v. Moser, 123 F.3d 813, 823-24 (5th Cir.) (although defendant preserved one Fourth Amendment ground, his failure to raise “knock and announce” issue resulted in plain-error review), cert. denied, 522 U.S. 1020 , 1035 (1997), 522 U.S. 1092 (1998).