Is It The L.A. 'Riots?' Or 'Rebellion?' 'Unrest?'

It's been 20 years since Los Angeles erupted in violence after four LAPD officers were acquitted in the beating of Rodney King. And still, the city is not in agreement on what to call the events ? riots, an uprising, a rebellion, or unrest? Melissa Block and Robert Siegel hear some of the options and opinions.

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