Tornadoes sweep through central South

Southern Indiana, southern Ohio, most of Kentucky, central Tennessee, northeastern Mississippi and northwestern Alabama are in the middle of a huge storm system. As of an hour ago, there were 22 tornado warnings in this region, affecting 47 counties. Multiple tornadoes have touched down already, though it's not yet clear how many. If you're down there, stay safe. 2011 was the deadliest year for tornadoes since 1953. Hopefully, we aren't looking at a repeat of that kind of spring.