In April 2011, 358 tornadoes obliterated parts of 21 states, killing 348 in the process. This hour, we’ll hear the stories of people who survived the destruction – and we’ll talk about what can be applied to those affected by the recent North Texas tornadoes – with Kim Cross. She’s the author of “What Stands in a Storm: Three Days in the Worst Superstorm to Hit the South’s Tornado Alley” (Atria Books).