The White House has insisted that there is “no evidence to substantiate the charge that Syrian opposition has used chemical weapons”.
US President Barack Obama has again warned of the “consequences” should chemical weapons be used in Syria.
The White House said it was “looking carefully” at the allegations.
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Temperatures still a talking point
Tom Mauser's son Daniel was killed during the Columbine high school massacre. He writes for ITV News about incoming President Trump.
Parents in America are so concerned about their children they are teaching them how to use guns.