For years, Lebanese have known that Palestinian camps like Nahr al-Barid and Ain al-Helwe - hopeless slums crowded with generations of disenfranchised Palestinian refugees who can't go home because of Israel, and can't work because of Lebanese laws - are awash with gunmen, criminals and, since the war in Iraq, al-Qaida inspired jihadists.

Under a decades-old agreement, Palestinian refugee camps are supposed to administer and police themselves. Lebanese troops are technically not allowed to enter them.

Richard Engel Quotes