U.S. built new nuclear reactors a year after Japan did . 23 GE Mark I reactors in Japan share same design as Fukushima nuclear plant . Many are older , but have undergone significant upgrades . GE says it is proven , reliable technology that is safe to use .
U.S. OKs new nuclear reactors a year after Japan disaster . 23 GE Mark I reactors in U.S. share same design as Fukushima Daiichi plant . Many are aging , but have undergone safety improvements . GE says design is proven , reliable technology that is safe to use .