61.   He sounded the same note in talking about requests for IFOR to guard sites believed to be mass graves, keeping them secure for investigation by humanitarian agencies.

62.   IFOR spokesmen denied, however, that they had changed their position on guarding specific sites, insisting that their goal was to provide area security.

63.   IFOR has received requests to guard sites believed to be mass graves, keeping them secure for investigation by humanitarian agencies.

64.   IFOR spokesmen denied, however, that they had changed their stance on guarding specific sites.

65.   BARTEC is a leading supplier of security systems which guard industrial sites against explosions, radiation and environmental hazards.

66.   But the head of the NATO force, US Admiral Leighton Smith, firmly ruled out that his troops would guard such sites on a systematic basis.

67.   But IFOR could not be expected to dedicate troops to guarding these sites.

68.   NATO troops guard the site during the day while local Serbs hired by the United Nations stand vigil by the mass grave overnight.

69.   Overall Ifor commander US Admiral Leighton Smith said Sunday that the NATO-led force would provide general security, but would not actually guard the sites themselves.

70.   Overall IFOR commander US Admiral Leighton Smith said Sunday that the NATO-led force may provide general security but would not actually guard the sites themselves.