11.   Israel Radio reported that police would be on alert for possible revenge attacks.

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

13.   Recent events have raised concerns of possible revenge campaigns by whites against the new, black majority government.

14.   Such sentences are apparently intended to protect convicts from possible revenge attacks.

15.   His father described the attack as a possible revenge hit by drug barons.

16.   A Mexican official was assassinated in a restaurant in the capital in a case family members described as a possible revenge hit by drug traffickers, officials said Friday.

17.   Police on the Mediterranean island have also beefed up security around Israeli interests, fearing a possible revenge attack, officials said.

18.   Released prisoners in Jericho have asked the Palestinian authorities to protect them from possible revenge killings by families of slain collaborators.