Securing the Election: Chris Krebs, a lifelong Republican, was put in charge of the agency handling election security by President Trump two years ago. When Krebs said the election was the country's most secure ever, Mr. Trump fired him. Now, Krebs speaks to Scott Pelley.The Last Slave Ship: The Clotilda was burned and sunk in an Alabama River after bringing 110 imprisoned people across the Atlantic in 1860. Two years ago, its remains were found. Anderson Cooper reports on the discovery of the wreck and the nearby community with descendants of the enslaved aboard the ship.James Corden: Bill Whitaker talks with the host of CBS' "The Late Late Show" about his favorite Carpool Karaoke guest, changing his show due to the COVID-19 pandemic and his new Netflix project with Meryl Streep.