a Fifth Amendment privilege as to the subpoenaed materials themselves; there was no act-of-production privilege claimed. The same was wue in SEC v. Jerry T. O'Brien. Inc.. 467 U.S. 735 (1984). In United Stares v. Ghidoni, 732 F.2d 814, 818.19 (11th Cir. 1984), quite unlike this case, the authorization which the