CHICAGO —The Coast Guard is responding to the capsizing of a tug on the Calumet River near the 106th St. Bridge in Chicago in which two crew members were able to escape and swim to shore. Shortly after 7 p.m., two crew members on board the 57-foot tug, Bonnie G. Selvick, attempted to turn the vessel around while transiting south on the Calumet River. During the process, the vessel rolled over, began...