The blacked-out sport utility vehicles entered the small mountain village of Arsal, in the furthest reaches of Lebanon's Beqaa Valley, at midnight on a cold night late last month. The mostly Sunni residents of the town immediately knew what was happening: Hezbollah had come to grab someone from his bed. The target appears to have been a Syrian relative of the dominant local tribe, the Qarqouz, who had taken refuge in the village, which lies just a few miles from the Syrian border. With close families ties on both sides of the line, as well as a central government presence...
