The Bush administration, in one of its biggest environmental decisions, moved yesterday to open nearly one-third of all remote national forest lands to road building, logging and other commercial ventures. The 58.5 million acres involved, mainly in Alaska and in western states, had been put off limits to development by President Bill Clinton eight days before he left office in January 2001. In Virginia, 394,000 acres are affected in the Jefferson and George Washington national forests. Under existing local forest management plans, about 34.3 million acres of these pristine woodlands nationally could be opened to road construction. That would be...