On the eve of the 76th anniversary of D-Day, Robert Citino, historian at the National World War II Museum in New Orleans, joins "CBS This Morning" co-host Anthony Mason to discuss lessons gleaned from history as thousands of people take to the streets to protest police brutality and systemic racism amid the global coronavirus pandemic. Citino says Americans have the ability to come together in difficult and trying times, despite the nation's rugged individualism.See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.