Student Madeline Evans walks past a destroyed school bus after a tornado devastated the town of Henryville, Indiana, March 3, 2012. Rescue teams and residents combed through storm-wracked towns to assess damage on Saturday from a chain of tornadoes that cut a 1,000-mile swath of destruction from the Midwest to the Gulf of Mexico, as the death toll crept up to at least 39 people. [Xinhua/AFP]