One week later: the Great East Japan Earthquake

The extent of the devastation caused by the earthquake and tsunami that struck Japan on March 11 is being discovered, day by day. One week has passed since the magnitude 9.0 quake sent the northeastern Tohoku region into convulsions. Tsunami more than 10 meters high set off a series of safety system failures at a nuclear plant, where the situation continued to deteriorate. We'll examine events since the catastrophic quake and report on relief operations underway.