East Coast Braces for Storm of a Century

President Obama has cancelled campaign appearances and returned to the White House to coordinate federal agencies working with states and localities. Saying the storm has "fatal potential," he warned those in the path to pay attention. "Please listen to what your state and local officials are saying. When they tell you to evacuate, you need to evacuate." Alex Sosnowski, expert senior meteorologist for AccuWeather, joins us from State College, Pennsylvania.