21.   But French officials, despite pleading by other countries, say they have finished their mission to provide a security zone for people during the fiercest fighting.

22.   But instead of the usual heightened military response and unchallenged arguments for reinforcing the security zone, a debate has opened here which includes numerous calls for unilateral withdrawal.

23.   But the creation of the security zone also created the largest black market clearing house for cigarettes in the Middle East.

24.   Clashes regularly erupt in the Israeli self-declared security zone it occupies in southern Lebanon.

25.   Does the security zone in Lebanon protect the north of Israel?

26.   For example, Hezbollah has attacked Israeli soldiers inside its security zone from outside it, hiding among civilians.

27.   For three years, Hassan said, he was not permitted to travel outside the security zone.

28.   French military officials and relief workers say they will not allow any propaganda efforts among the displaced in the security zone.

29.   He had left the security zone to look for a camera bag, then mistakenly dashed the wrong way back.

30.   He followed a city bus into a security zone beside Lafayette Park, just in front of the White House.