WASHINGTON (AP) - With organized labor in disarray, two unions renewed threats Wednesday to break from the AFL-CIO in a deepening feud over how to stem the erosion of membership and revive labor's economic and political strength. AFL-CIO President John Sweeney tried to quell the simmering rancor by directing a committee of about two dozen union leaders to recommend changes and set a February vote by the federation's executive council. Calling the effort an "open discussion, a thorough discussion," he said leaders would "be looking at how we can do an even better job with politics and organizing more members."...