Tuesday March 19, 10:39 am Eastern Time Associated Press Power company employees ask for full investigation of electricity pylon explosion ATHENS, Greece (AP) -- The union representing Public Power Company employees on Tuesday demanded a full investigation into a powerful explosion that damaged a high voltage electricity pylon connecting Greece with Italy. The blast late Sunday near Greece's border with Albania toppled an electricity pylon connected to an undersea power cable which runs to Italy. Police said they are investigating the blast, caused by a large amount of dynamite, but have no leads in the case. "If the explosion is...