1.   As investigators combed the site, NATO troops protected the area and NATO aircraft buzzed overhead.

2.   As the Balkan winter recedes into spring, three dozen forensic investigators have begun combing those sites for clues that could point to culpability for the massacres.

3.   A team of U.S. investigators, led by the FBI, combed the site of the explosion on Saturday.

4.   Crews of experts will comb the site for every speck of debris and painstakingly document it.

5.   Hoping to find clues about the cult and about what happened at Kanungu, investigators have been combing other sites where the cult operated.

6.   Investigators combing the site after the blast said that the bomb, placed in a trashcan, apparently was a butane gas canister filled with nails and bolts.

7.   Investigators combing the site after the blast said that the bomb, placed in a trash can, apparently was a butane gas canister filled with nails and bolts.

8.   Nor would they say what precisely they were looking for as they combed the site for parts of cars.

9.   Scores of experts called in by the Federal Emergency Management Agency, using advanced listening technology and trained dogs, combed the site Thursday morning.

10.   A large detachment of police were seen combing the site, but no arrests have been announced.