10 biggest strikes in U.S. history

Published: Sep 17 2012 11:21:36 AM EDT   Updated On: Oct 22 2013 10:27:04 AM EDT
San Fran BART strike

With transit workers in California's Bay Area returning to work, ending a strike that paralyzed the nation's fifth-largest train system, take a look back at the 10 biggest strikes in U.S. history.