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In the aftermath of Superstorm Sandy, a work crew based in St. Louis, Missouri trims trees entangled in power lines on Broadway on November 3, 2012 in Bethpage, New York. With the death toll currently over 100 and millions of homes and businesses without power, the U.S. East Coast is attempting to recover from the effects of floods, fires and power outages brought on by Superstorm Sandy. New Jersey has begun rationing gas and the Department of Defense will be setting up mobile gas stations in New York City and Long Island. (Photo by Bruce Bennett/Getty Images)
In the aftermath of Superstorm Sandy, a work crew based in St. Louis, Missouri trims trees entangled in power lines on Broadway on November 3, 2012 in Bethpage, New York. With the death toll currently over 100 and millions of homes and businesses without power, the U.S. East Coast is attempting to recover from the effects of floods, fires and power outages brought on by Superstorm Sandy. New Jersey has begun rationing gas and the Department of Defense will be setting up mobile gas stations in New York City and Long Island. (Photo by Bruce Bennett/Getty Images)

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Did Sandy power outages have to happen?

CNN's Tom Foreman looks at why so many people lost electricity after Sandy and how this can be prevented.

Did Sandy power outages have to happen?

CNN's Tom Foreman looks at why so many people lost electricity after Sandy and how this can be prevented.