SAN DIEGO (Jan. 24, 2021) Capt. P. Scott Miller uses the shipboard general announcing system to address the crew of Nimitz-class nuclear aircraft carrier USS Carl Vinson (CVN 70) after assuming the duties and responsibilities as the ship's commanding officer. Vinson is currently pierside in its homeport of San Diego. (U.S. Navy photo by Mass Communication Specialist Seaman Olympia O. McCoy)