The plan to burn 34 MT of excess weapon-grade plutonium in civilian power reactors may be delayed. The MOX fuel manufacturer, Areva, terminated the test of its fuel assemblies that was underway at the Catawba power plant. According to an account of the Union of Concerned Scientists, Areva would have to begin the tests anew, causing significant delays and cost overruns. Areva, naturally, disputes the need to repeat the tests.