The top U.S. prosecutor in Washington launched an investigation on Wednesday into threats against federal workers - and named Democratic Senator Chuck Schumer as a target of the probe - after people working in Elon Musk's drive to downsize and overhaul the government said they had been threatened. . . Martin named the initiative "Operation Whirlwind," saying that Schumer, the top Democrat in the Republican-led U.S. Senate, is the subject of a threats investigation. Schumer spoke out against Supreme Court Justices Neil Gorsuch and Brett Kavanaugh at a 2020 abortion rights rally by saying: "You have released the whirlwind and...