"A Lebanese special forces policeman escorts the vehicles of U.N. experts on the arrival at the private jet terminal, at Beirut international airport, Lebanon, Saturday, Aug. 31, 2013. The U.N. experts investigating last week's alleged chemical weapons strike outside Damascus left Syria early Saturday and crossed into neighboring Lebanon, departing hours after President Barack Obama said he is weighing ""limited and narrow"" action against a Syrian regime that the administration has bluntly accused of launching the deadly attack. (AP Photo/Hussein Malla)"
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