Protecting nuclear plants from nature's worst

HurricaneSandy LOGO Cars sit half-submerged in a flooded parking lot after super-storm Sandy tears through Long Island.

As the East Coast cleans up from super-storm Sandy, Phillip Lipscy and Kenji E. Kushida point to important lessons from Japan's Fukushima nuclear disaster. They say more must be done to safeguard U.S. nuclear plants from natural disasters.