ear." United States'. iFlth, 668 F.2d 1238, 1267 (D.C. Cir. 1982); see also United States I. Rude 88 F.3d 1538, 1552 (9th Cir. 1996). United States I. Slocum, 708 F.2d 587, 604 (11th Cir. 1983); United States,. Ochs, 595 F.2d 1247, 1258 (2d. Cir. 1979) ("some perusal, generally fairly brief"). If a docum