CHATTANOOGA, TN—Eight workers at Volkswagen’s assembly plant here have filed complaints with the National Labor Relations Board, claiming that the UAW misled or coerced them into signing cards requesting union representation at the plant.

DES MOINES, IA—Union workers at the Firestone tire factory here reached a tentative contract agreement late Friday, averting a strike.

SWAN ISLAND, OR—Union workers at Daimler’s truck assembly plant here have gone on strike after rejecting a $1.30 per hour pay raise. The union had been seeking a $1.95 increase.

WASHINGTON—Workers who gripe about the boss or their colleagues on Facebook may be at risk of getting fired unless a U.S. appeals court decision is reversed.

LANSING, MI—Michigan’s state House has passed bills giving both public and private employees so-called right-to-work protections.

FAYETTEVILLE, TN—Nearly 1,000 union workers at the Goodman air-conditioner assembly plant here went on strike Saturday.

DETROIT—Chrysler has reinstated a number of employees from its Jefferson North assembly plant here who were discharged in September 2010 after they were caught consuming alcohol on a break.