When it comes to the nuclear reactors Georgia Power has been trying to build at Plant Vogtle, there never seems to be any good news, just a steady stream of ever-worsening bad news. The latest wave of negative news hit last week in the form of disclosures by top executives of the Southern Co., the Atlanta-based holding company that owns Georgia Power and several other utilities. They confirmed that the total cost of the Vogtle project, if it were ever to be actually completed, will be at least $25 billion, but it could potentially reach as high as $27 billion.