AP) The White House on Wednesday promised a full investigation of the West Virginia coal mine disaster that killed 12 people. Congressional Democrats called for hearings to look into both the safety record of the mining company and the Bush administration's policies on mine safety. "We send our prayers and heartfelt condolences to the loved ones whose hearts are broken," President Bush said. "We ask that the good Lord comfort them in their time of need." He praised West Virginia Gov. Joe Manchin "for showing such compassion" during the crisis and thanked rescuers "who risked their lives to save those...