A hush-hush nuclear fusion project that's received $12 million from the U.S. Navy is now sharing what it calls encouraging results — and looking for private investment. For years, EMC2 Fusion Development Corp. has had to conduct its research into what's known as Polywell fusion outside public view because the Navy wanted it that way. Now the Navy is phasing out its funding, and EMC2 Fusion is planning a three-year, $30 million commercial research program to see if its unorthodox approach can provide a fast track to cheap nuclear fusion power. "The goal is, we want to get a set...