Many of Lebanon's Sunnis once supported Hezbollah for its resistance of the Israeli occupation. But now, they feel the Shiite group has turned on them.
The recent murder of a top Al Qaeda-inspired militant and an exodus of other militants may signal increased stability, due in part to cooperation between Fatah and Islamist factions.
With little faith in Israeli-Palestinian talks, and largely unable to integrate into Lebanon, many Palestinian refugees see violence as the only way to secure their 'right of return.'
In a move to avoid a second deadly battle in a Palestinian refugee camp, some groups have taken a rare step away from Islamist militancy.