Abu Malek was pacing back and forth in the hospital parking lot, muttering to himself and firing off phone calls. “Don’t say ‘How are you’ to me,” he told one caller, “because I am not fine, I am very, very, very, very bad.” The hospital was in the Turkish town of Antakya, and the staff was treating several rebels who had been wounded in the fighting across the border in Syria, about ten miles away. The Syrian army was in the midst of a major offensive, sweeping through one northern town after another with tanks and heavy artillery, trying to…