The U.S. Federal Communications Commission will terminate its investigation into EchoStar's 5G buildout obligations in the country, according to a regulatory filing from the company on Tuesday. The highly expected move follows EchoStar's $17 billion deal to sell wireless spectrum to billionaire Elon Musk's SpaceX and comes about two weeks after it announced a $23 billion spectrum sale to AT&T. In a letter to EchoStar Chairman Charles Ergen on Monday, FCC Chair Brendan Carr wrote he had asked