For a violation of 18 U.S.C. § 1001, a false statement may be
written or oral, sworn or unsworn, voluntarily made in regard to information
sought as or required by law, signed or unsigned. See generallyUnited
States v. Beacon Brass Co., 344 U.S. 43, 46 (1952); United States v.
Poindexter, 951 F.2d 369, 387-88 (D.C. Cir. 1991) cert. denied,
506
U.S. 1021 (1992), cert. denied, 406 U.S. 1021 (1992); United
States v.
Massey, 550 F.2d 300, 305 (5th Cir. 1977); on remand, 437 F. Supp. 843
(1977); United States v. Isaacs, 493 F.2d 1124, 1156-57 (7th Cir.
1974),
cert. denied, 417 U.S. 976 (1974).