1.   Clouds of smoke wafted over the Bosnian capital.

2.   Clouds of smoke wafted over the Bosnian capital during a day in which shells began falling from the sky at a rate of up to three a minute.

3.   Clouds of tear gas wafted from the prison.

4.   Mothers held handkerchiefs to the noses of young children as tear gas clouds wafted overhead.

5.   Thick clouds of smoke wafted from the wreckage of the Korean Air jetliner that crashed in lush, rocky terrain, choked with tropical vegetation and inaccessible by road.

6.   Towering clouds of gas wafted over a boulevard near a train station where thousands of demonstrators were trying to skirt police.