He was at the Holocaust memorial but his comments should also be taken in light of the current situation: the US is arming al Qaeda to overthrow Syria, Israel will soon be surrounded by Muslim Brotherhood countries put in place by...the West. He is telegraphing that if another 6 day war onslaught is tried Israel will stop at NOTHING to prevent their being pushed into the sea. Damascus is said to be destroyed in a single day, Isaiah 17. Israel knows with ObamaMuslim they are alone and the world has been warned.
Yes, there is a better than even chance, that Damascus will eventually disappear under mushroom clouds. In the end times, I am sure that nucs will be thrown around with regularity.