Begay V. United States

The Armed Career Criminal Act imposes a special mandatory 15-year prison term upon felons who unlawfully possess a firearm and who also have three or more previous convictions for committing certain drug crimes or "violent felon[ies]." 18 U. S. C. §924(e)(1) (2000 ed., Supp. V). The question in this case is whether driving under the influence of alcohol is a "violent felony" as the Act defines it. We conclude that it is not.