Nuclear power in the U.S. has been relatively flat for the past 25 years. It is technologically viable, environmentally friendly, yet politically unpopular and economically uncompetitive. But there is new cause for optimism. A new federal push to modernize and expand nuclear energy is breathing fresh life into the long-dormant uranium sector. And that could have important implications for investors looking to position ahead of what might become a structural shift in American energy policy. The Nuclear Paradox Nuclear energy has long held…