Crisis at YRC having ripple effect on labor

YRC's troubles are taking employees, the Teamsters' freight division, and the multi-employer pension system for a wild ride.The International Brotherhood of Teamsters has seen a lot in its 107 years of existence. But in its near two-year effort to rescue troubled trucker YRC Worldwide Inc., it's a safe bet the venerable union went where it has never gone before.During 2009, as YRC's financial