Reimagining Police – Scott Pelley reports from Austin, Texas, one of several U.S. cities experimenting with a new way of policing in which trained civilians, such as mental health clinicians, are responding to calls once answered by armed officers. 

Supersonic – Could commercial supersonic flights make a comeback? Several start-up companies think so, and NASA thinks it can solve one of the problems that grounded supersonic planes the last time around: the "sonic booms" that break windows and rattle nerves. Bill Whitaker reports. 

Caligula's Gardens – The gardens of the Roman Emperor Caligula have been discovered and excavated, and some of the most remarkable finds are now on display for the first time. How does this affect scholarly efforts to take a new look at the emperor and whether he was as cruel and depraved as he's been made out to be? Anderson Cooper reports from Rome. 

Reality Winner: Reality Winner, a former NSA contractor/linguist, tells Scott Pelley she leaked classified documents to the media to honor her pledge of service to the American people. This is her first television interview since being released from a four-year prison term, the longest sentence ever imposed on a civilian for leaking classified information to the media.

China's Next Revolution?: Is President Xi Jinping undoing capitalism in China? In the last 40 years, China has become the only global economy to rival the U.S. But President Xi is cracking down on some of the private sectors, companies, and individuals that led to the country's prosperity. Lesley Stahl reports. 

Gucci: Gucci creative director Alessandro Michele tells Sharyn Alfonsi about his provocative designs, why he likes ugly things, and how he introduced "beautiful strangeness" into the Gucci brand.