<div class="at-above-post addthis_tool" data-url="http://www.metro.us/supreme-court-debates-union-tactics-in-spoiled-concrete-case/"></div>WASHINGTON (AP) — The Supreme Court on Tuesday debated the limits of the pressure unions can exert during a strike in a case about cement truck drivers who walked off the job with the trucks full of wet concrete. Chief Justice John Roberts at one point summed up the difference between causing a company to […]<!-- AddThis Advanced Settings above via filter on get_the_excerpt --><!-- AddThis Advanced Settings below via filter on get_the_excerpt --><!-- AddThis Advanced Settings generic via filter on get_the_excerpt --><!-- AddThis Share Buttons above via filter on get_the_excerpt --><!-- AddThis Share Buttons below via filter on get_the_excerpt --><div class="at-below-post addthis_tool" data-url="http://www.metro.us/supreme-court-debates-union-tactics-in-spoiled-concrete-case/"></div><!-- AddThis Share Buttons generic via filter on get_the_excerpt --><!-- AddThis Related Posts below via filter on get_the_excerpt --><div class="at-below-post-recommended addthis_tool" ></div><!-- AddThis Related Posts generic via filter on get_the_excerpt -->