Systematic racial discrimination exists in U.S. society

Unrest continues to rock America, with curfews in place in over 20 cities. Protests have been marked with chants of "I can't breathe," a rally cry echoing George Floyd's final words, after his fatal arrest. Traffic has been blocked, while some demonstrators have started fires and clashed with riot police. In California, the Los Angeles County has been put under a state of emergency.