Dramatic video posted on a social media website shows a helicopter flying near the Syrian capital Damascus-- it's hit by something, then starts spinning out of control.<br/> <br />It erupts into a ball of fire, then spirals down to earth.<br/> <br />In the background, shouts of "God is Great, the downfall of a plane on October 5, 2012."<br/> <br />Reuters is unable to independently verify the contents of the video.
