The billionaires made a promise — now some want out

In 2010, Warren Buffett and Bill Gates launched a disarmingly simple campaign they called the Giving Pledge: a public commitment, open to the world’s wealthiest people, to give away more than half their fortune during their lifetime or upon their…

Bill Gates’ TerraPower gets approval to build new nuclear reactor

It’s the first permit to be issued by the Nuclear Regulatory Commission in nearly a decade.