Special Counsel Robert Mueller told a federal judge he was concerned Roger Stone might destroy or tamper with evidence, if not flee, ahead of his arrest on Friday morning. Mueller convinced the judge to seal an indictment returned by a grand jury on Thursday, charging Stone with lying to Congress about his communications with the Trump campaign and WikiLeaks about Democratic emails stolen by Russian hackers. (Stone is also accused of witness tampering.) FBI agents arrested Stone at his Florida home before dawn on Friday. Federal agents also raided his apartment in New York and a recording studio in Florida, where they were reportedly seen carting away hard drives and evidence.