Violent clashes leave dozens dead in Ukraine's capital

Violent clashes leave dozens dead in Ukraine's capital
Anti-government protesters clash with riot police in Kiev's Independence Square, the epicenter of the country's current unrest, Kiev, Ukraine, Tuesday, Feb. 18, 2014. Thousands of police armed with stun grenades and water cannons attacked the large opposition camp in Ukraine's capital that has been the center of nearly three months of anti-government protests on Tuesday, after at least nine people were killed in street clashes. (AP Photo/Sergei Chuzavkov)

John Carlson speaks with ABC News Correspondent Tom Rivers as deadly clashes re-ignite in Ukariane's capital Kiev with as many as 25,000 demonstrators.