Anchored by Jake Tapper, The Lead airs at 4 p.m. ET on CNN.
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Washington (CNN) - U.S. President Barack Obama has authorized reconnaissance flights over Syria as ISIS militants continue to gain ground in the war-ravaged nation, a U.S. official told CNN.
The flights - seen as a forerunner of possible U.S. airstrikes against ISIS in Syria - could begin at any point, the official said Monday.