Chicago dog owners who tether their pets for hours on end without food or water would be reined in -- with a two-hour limit -- under a crackdown proposed Wednesday by the City Council's most powerful alderman. "If dogs are tethered in this way, it makes them more likely to bite humans and makes them mean," said Finance Committee Chairman Edward M. Burke (14th). "It's a question of cruelty to the animals. It's a question of responsible care of animals. If people own pets, they ought to treat them responsibly." The Burke-championed ordinance introduced at Wednesday's City Council meeting would...