In this Tuesday, Dec. 11, 2012  photo an earth mover works on a new nuclear reactor at  the Plant Vogtle nuclear power plant in Augusta, Ga.,  One of the plant's existing reactors is shown in the background. With the cost of nuclear plants rising, a handful of state officials are showing signs of buyer's regret.  The reservations come as two of the three nuclear plants under construction have faced cost overruns just as electricity generated by natural gas has gotten cheaper. (AP Photo/John Bazemore)
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