President Barack Obama said on Thursday if reports of Chlorine gas attacks in Syria were confirmed, the United States would work with the international community to put a stop to them. At a news conference after his Camp David summit with Gulf allies, Obama said he has seen reports about the use of Chlorine in Bombs that have the effect of chemical *******. The Organization for the Prohibition of Chemical ******* has been Investigating allegations of dozens of recent Chlorine gas attacks in Syrian villages, but diplomatic sources say it is being refused access to the sites by President Bashar al-Assad's government.