Nuclear power has its pros and cons. Right now, the U.S. seems to be embracing its advantages. Last month, Georgia Power announced that its Vogtle Unit 3 reactor has safely reached 'initial criticality.' “A reactor achieves criticality when the nuclear fission reaction becomes self-sustaining,” the company said in a statement. “Achieving initial criticality is necessary to continue the startup of the Unit in order to generate sufficient heat for the production of electricity.” Nuclear Regulatory Commission spokesperson Scott Burnell told CNBC that this marked the first nuclear reactor to achieve initial criticality since May 2016. Georgia Power expects Vogtle Unit...