Who are the Lebanese prisoners held in Israel?

Samir Quntar is the terrorist who attacked an Israeli family in Nahariya, but the other three are more obscure. This article provides useful background.The Daily Star - Politics - 34 days of war for 4 men: Who are they?: "Almost a month has passed since the Israeli bombardment of Lebanon ended, and as life slowly returns to normal, many Lebanese are asking themselves: Who exactly was this war fought for?"