Worst droughts in U.S. history

Published On: Jul 16 2012 08:23:12 AM PDT   Updated On: Feb 27 2014 01:20:46 PM PST
Drought cracked earth

Driven by another year of below-average rainfall, national weather experts predict a drought on the East Coast will persist for months. Take a look back at the worst droughts in U.S. history.