On Call: How the National Guard Prepares for Flash Disaster
![](https://media.wnyc.org/i/800/0/c/85/photologue/photos/oil_spill_sandbags.jpg)
A Louisiana National Guard helicopter carries away sandbags as it takes part in an operation to fortify offshore barrier islands from incoming oil June 1, 2010
( Getty Images )
( Getty Images )
Produced by Hsi-Chang Lin