Tensions on the Korean Peninsula Soar after North Attacks

For the first time since the Korean War, North Korea fired artillery shells on South Korea's civilian territory today, killing two soldiers, wounding residents and setting fire to houses on Yeonpyeong Island. North Korea says it was responding to shells fired at sea during a South Korean military exercise. Mike Chinoy is Senior Fellow at the US-China Institute at the University of Southern California and author of Meltdown: The Inside Story of the North Korean Nuclear Crisis.