Chauvin Trial, Standardized Testing, Sesame Street

What’s at stake in the murder trial of the former Minneapolis police officer who knelt on George Floyd’s neck. Also, schools got a one-year reprieve from standardized tests because of the pandemic, but now the tests are back. Then, the secret behind Sesame Street's enduring success over the last 50 years. Additionally on today's show: a look at the lost art of letterlocking, and how scientists are turning those flimsy plastic shopping bags into clothing. (AP Photo/Jim Mone)