Surfing through Channel 2 is like taking a ride on Japan's wild side. On any given day you can read messages about users' schemes to assault their bosses, murder their teachers or blow up a neighborhood kindergarten. Most are by harmless attention seekers. "There are so many of those, I can't keep count," Nishimura says. Police are starting to take notice, though. Last month, after someone left a message identifying a schoolgirl and threatening to rape her, anonymous callers tipped off police, who immediately surrounded the girl's school in Ibaraki prefecture. Fortunately, this one turned out to be a sick prank.