Japan Tries to Soothe Nuclear Worries

Japanese authorities said Friday that the reactors at the Fukushima nuclear power plant are under control.

The announcement comes nine months after the plant was crippled by an earthquake and tsunami, triggering one of the worst nuclear energy disasters in history.

Anchor Marco Werman talks with physicist Edward Lyman, a senior staff scientist in the Global Security program at the Union of Concerned Scientists in Washington, DC.