On December 10, one tornado generated winds as high as 190 miles per hour and left a path of devastation more than 165 miles long across Kentucky. Scott Pelley reports from Kentucky, By some estimates, more than half the impoverished, rural residents in one Alabama county have raw sewage running onto their property. One community advocate is turning the spotlight on this long-standing public health crisis. Bill Whitaker tells us more. "The Daily Show” host Trevor Noah grew up in South Africa during apartheid. As he tells Lesley Stahl, the comedian now connects American politics to his background. Those stories on this week's "60 Minutes."