In fierce battles with Syrian troops, Al Qaeda’s al-Nusra front is spearheading the rebels’ advance on the two Syrian army’s biggest chemical weapons depots – at the Al-Safira military and air defense base near Aleppo in the north and the Dumeir facilities 40 km northeast of Damascus. By Tuesday, April 2, the assault force had come within 1.5 kilometers of the Al-Safira complex. This prompted an urgent visit by Israel’s top security officials to the Golan border for a close assessment of the situation. The group surveying the situation from the IDF position at Tel Hazaka was led by Defense...