US Senator Joseph Biden has introduced a bill that would give law-enforcement agencies stronger tools to pursue copyright violators, and would give copyright holders stronger grounds for suing pirates.Intended to shore up holes in present copyright law, the bill, approved by the Senate Judiciary Committee on Thursday, July, 16 criminalizes copying not only of copyrighted content but also of the packaging that contains it. The bill makes it a crime to copy music, movies, and software, and to counterfeit "authentication devices" including watermarks, holograms and packages, and covers both…