1.   Bracing for a possible revenge bombing, Israel sealed off the West Bank and Gaza Strip Sunday, keeping tens of thousands of Palestinians from their jobs.

2.   But since Abdel Rahman was sentenced, the American authorities have tightened security at most airports in the United States as a protective measure against possible revenge attacks.

3.   Possible revenge could come Tuesday in Phoenix.

4.   Still, there is deepening concern in Israel over possible revenge attacks by Hamas, and military reinforcements were stationed on city streets.

5.   Rather than their neighbors, the fleeing Serbs were most afraid of the KLA seeking possible revenge.

6.   Chechen separatist President Dzhokhar Dudayev has repeatedly warned of possible revenge attacks, although there was no immediate statement from the rebels about the assault.

7.   Chechen separatist President Dzhokhar Dudayev has repeatedly warned of possible revenge attacks.

8.   Dudayev has repeatedly warned of possible revenge attacks.

9.   Israel has already taken one possible revenge.

10.   Israeli security forces were on high alert Monday for possible revenge attacks for the Hebron shooting.