FILE -In this June 6, 2007 photo shows the American Centrifuge Plant in Piketon, Ohio. The U.S. Department of Energy will ensure cost-shared funding in a deal with USEC Inc. for the American Centrifuge Plant in Piketon. The department said Wednesday, June 13, 2012 that the cooperative agreement will move critical research forward while protecting taxpayer dollars. (AP Photo/Al Behrman, File)