Realizing the rework necessary for missile tubes slated for the Columbia-class submarine was "more substantial than previously contemplated," BWX Technologies has reserved $26.7 million to cover repairs, the company disclosed today. The contractor in August said it had identified missile tube welding problems and disclosed the situation to the Navy and Columbia-class prime contractor General Dynamics Electric Boat. In a call with analysts today, Rex Geveden, BWXT's chief executive, said the company earlier this year identified an issue with "inspection...