EcoWatch: The Commonwealth of Kentucky may sue the federal government to compel cleanup of the now-closing uranium enrichment site at Paducah, according to the governor and the state attorney general. The quasi-privatized operator of the facility, USEC Inc., filed suit against the Department of Energy (DOE) in May. Shareholders and/or bondholders of USEC may sue the company for a third or fourth time over its current financial collapse, and the feds may have to sue USEC if it defaults on its obligation to...