FBI Director Robert Mueller on Tuesday called on Internet service providers to record their customers' online activities, a move that anticipates a fierce debate over privacy and law enforcement in Washington next year. "Terrorists coordinate their plans cloaked in the anonymity of the Internet, as do violent sexual predators prowling chat rooms," Mueller said in a speech at the International Association of Chiefs of Police conference in Boston. "All too often, we find that before we can catch these offenders, Internet service providers have unwittingly deleted the very records that would help us identify these offenders and protect future victims,"...