With the recording industry threatening to begin suing the biggest file-swappers, millions of users of file trading services like Kazaa and Morpheus are wondering just how many downloads qualifies as lawsuit-worthy. And that, of course, is exactly what the RIAA wants. “The intent is to scare everyone from prototypical pirates who share hundreds of ripped CDs through T-1 lines to teens who trade a handful of pop tunes. Still, the heaviest sharers are a distinct bunch relatively easy to pick out in a crowd.”