1. 1 Although s 4A1.3 is a policy statement rather than a guideline, it is an "authoritative guide" to district courts, see
2. Williams v. United States, 503 U.S. 193, 199-201 (1992);
3. United States v.
4. Beckham, 968 F.2d 47, 54 n. 4 (D.C. Cir.1992), and this court
5. has applied it with the authority of a guideline, see, e.g.