Middle East
Risking kidnapping, or worse, we explored Islamic State's self-declared caliphate in Syria. Here's what happened

Testing the San Gabriel Dam

San Gabriel Dam operators opened large valves in 2010 as part of a biannual test needed to ensure that the earth-and-rock dam, tall as a 25-story building, would be able to control floodwaters rampaging out of the San Gabriel Mountains' 200-square-mile watershed. Read more: U.S. seeks national recreation area status for San Gabriels
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