Satellite images of Tuscaloosa, Ala., before and after the tornado
Severe storms in seven Southern states are now the second worst in history and officials are bracing for a humanitarian crisis. Use the slider below to compare the landscapes before and after a tornado hit Tuscaloosa. Images courtesy Google Earth, GeoEye.
Tuscaloosa, Ala. on Oct. 4, 2010, and on April 28, 2011 after tornado.
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