If the defendant is subject to an enhanced sentence under 18 U.S.C. § 521 (pertaining to criminal street gangs), an upward departure may be warranted. The purpose of this departure provision is to enhance the sentences of defendants who participate in groups, clubs, organizations, or associations that use violence to further their ends. It is to be noted that there may be cases in which 18 U.S.C. § 521 applies, but no violence is established. In such cases, it is expected that the guidelines will account adequately for the conduct and, consequently, this departure provision would not apply.