What does the passing of Kim Jong-il mean for regional stability?

The passing of Kim Jong-il marks the demise of one of the world's most ruthless dictators.  Though some world leaders might see this as a moment to celebrate, others are more worried that Jong-il's death could provoke regional instability.  Indeed, little is known about Kim Jong-il's designated successor, his young son Kim Jong Un.

Ali Velshi talks with Victor Cha, senior adviser and Korea chair at the Center for Strategic and International Studies, about what Kim Jong-il's passing could mean for the Asian region.