Translation: we're planning an atrocity and we'll blame it on the Americans.
“We do not assess the dam to be in imminent danger unless ISIS plans to destroy it,” said Col. Joe Scrocca, United States Army and Director of Public Affairs for Combined Joint Task Force-Operation Inherent Resolve (CJTF-OIR).
It appears that some control equipment might have been damaged in fighting over the dam, or ISIS guys inside may have flipped some switches - but Raqqa got all its electricity from that dam, and it is now off, causing the water pumps to stop.
ISIS might have wanted to stampede some refugees out of town, so they could hide among them.
Where are the UN condemnations of ISIS?