U.S. Rep. Jesse Jackson Jr. called Wednesday for the resignation of Metra Chairman Jeff Ladd, accusing him of being biased against the south suburbs and catering instead to affluent, largely white communities in the west and northwest. Metra's latest plan--for a $1.1 billion line that would link Joliet to the northwest suburbs via O'Hare Airport --should be called the "White Line," said Jackson, echoing complaints in recent days from several south suburban legislators. "Metra has spent more than a billion dollars to build new service to the far reaches of the north, west and southwest suburbs in recent years," said...