Sectarian fighting could place Lebanon increasingly at risk of spiraling into a larger civil conflict by spurring a cycle of deadly revenge attacks that its government and military would struggle to control. At least two people were killed in the restive Lebanese town of Khaldeh on Aug. 1 when unidentified tribal gunmen ambushed a funeral procession being held for a Hezbollah commander killed the day prior. The fighting around Khaldeh -- which is located roughly 15 kilometers (or 9 miles) south of Beruit -- continued for hours, prompting the deployment of the Lebanese army to restore order. On Aug. 2, the army said it had detained at least one person involved in the funeral attack. ...