inappropriate. The money laundering statute was designed to be used and has been construed as a "concealment" statute, not a spending statute. See United StatesiShepard, 396 F.3d 1116 (10th Cir.), cert. denied, 545 U.S. 1110 (2005); United States I 4 4 F.3d 42 (1st Cir. 2006) (money laundering statute does not cri