Controversy over Michelangelo's 'David' leads to Florida principal's resignation and Italian invitation.

The mayor of Florence, Italy, Dario Nardella, has defended a Florida charter school principal who was pressured to resign after a parent complained students were exposed to pornography during a Renaissance art lesson that featured Michelangelo’s “David” sculpture. The principal, Hope Carrasquilla, has been invited to Florence to receive recognition on behalf of the city. The Florence museum housing the statue has also invited parents and students from the charter school to visit amid shock among Italians over the U.S. controversy.