61.   Khieu Samphan and Nuon Chea are widely believed responsible for crimes against humanity.

62.   Leftist rebels are believed responsible for shooting down a helicopter that was flying soldiers to the site of an oil pipeline attack.

63.   One appeal sought money for computer experts who supposedly are trying to track Osama bin Laden, the man believed responsible for the deadly assaults, consumer advocates say.

64.   Over the past month, police discovered a child sex gang believed responsible for abducting and killing at least four young girls in recent years.

65.   Palestinians vowed to strike after Israeli forces pushed into two Palestinian refugee camps in the West Bank last Thursday in search of militants believed responsible for earlier violence.

66.   One of several leftist guerrilla groups is believed responsible for the kidnapping, Manosalva said.

67.   Police are searching for opponents of urban sprawl believed responsible for the arson and vandalism of three Long Island luxury homes on Long Island.

68.   Police did not say who they believed responsible.

69.   President Vaclav Havel will undergo surgery this week on a small abscess in his throat believed responsible for his repeated bouts of bronchitis, doctors said Monday.

70.   Private militias, which accuse such activists of guerrilla sympathies, are believed responsible for most if not all the killings.