91.  But Russian officials vehemently denied that federal troops took part in any atrocities against civilians.

92.  But Russian nuclear officials are unrepentant about their drive for foreign sales and say the sale of power plants to India will not enhance its military potential.

93.  But Russian officials acknowledge lax security at their nuclear storage facilities, and say they know of two terrorist stakeouts and one loss of fissionable material.

94.  But Russian officials expressed frustration with the US approach.

95.  But Russian officials have also privately expressed frustration.

96.  But Russian officials insisted that the space station craft was durable and safe and added that the astronauts had sufficient food and water.

97.  But Russian officials said that this part of the mission was being canceled to limit the spacewalk to six hours.

98.  But some Russian military officials said Saturday that clearing the city of militants could take two weeks.

99.  But she was reduced to tears during the final event when a Russian official suggested she might have cheated by using a sticky javelin.

100.  But on Thursday Russian officials acknowledged for the first time that foreign doctors will play a role.