The union representing Southland grocery workers issued a 72-hour notice Thursday night canceling the grocery contract extension, paving the way for a strike. "We returned to the bargaining table ready to compromise and make a deal that keeps our employers profitable but protects the jobs of our members," said a statement from the United Food and Commercial Workers, which represents workers at Ralphs, Vons and Albertsons. "Instead, we got more of the same stonewalling from management. They are unwilling to compromise and are more concerned about hoarding their billions in profits than reaching a fair deal for their employees. We...