CBS Sunday Morning 8.16.2020

Ted Koppel investigates White House directives, granting vast powers to the president, that are so secret even Congress cannot see them. Erin Moriarty looks at the unprecedented demand for absentee ballots. David Martin looks back at the failed 1980 hostage rescue mission in Iran. Mark Strassmann visits Nashville's Ryman Auditorium, the "Mother Church of Country Music." Lee Cowan examines how the NBA, Tyler Perry, and some Virginia families are working hard to keep social bubbles from bursting. John Dickerson sets the stage for this week’s unconventional Democratic National Convention. Jane Pauley talks about recognizing signs of depression. And Nancy Giles shares the cool story behind the invention of popsicles.