About 3,800 workers at one of the nation’s largest meatpacking plants are on strike in Colorado GREELEY, Colo. -- About 3,800 workers at one of the nation's largest meatpacking plants went on strike Monday in Colorado in what union representatives said is the first walkout at a U.S. beef slaughterhouse since the 1980s. The strike at the Swift B... [1914 chars]