missing30 writes "A Turkish hacker seeding usenet groups with trojan horses has made it a habit to hunt down pedophiles trolling the groups. The cases go back to 2000, with the mysterious good samaritan responsible for several arrests. The man now has tacit approval from the FBI for his actions." From the article: "At the urging of Montgomery Police Capt. Kevin Murphy, '1069' eventually turned over more and more information that led back to a computer owned by Bradley Joseph Steiger, who had worked as an emergency room physician in Alabama. The hacker's finds included information from Steiger's AT&T WorldNet account, records from his checking account, and a list of directories on his computer's hard drive where sexually explicit photographs were stored."