o be interpreted in favor of the defendants subjected to them. See United States v. Gradwell, 243 U.S. 476, 485, 37 S.Ct. 407, 61 L.Ed. 857 (1917); AfcBoyle v. United States, 283 U.S. 25, 27, 51 S.Ct. 340, 75 L.Ed. 816 (1931); United States v. Bass, 404 U.S. 336, 347-349, 92 S.Ct. 515, 30 L.Ed.2d 488 (1