After earthquakes, they are employed to remove dangerous debris.
Again, a Pentagon report found "horrible" work: dangerous debris left in playground areas, sloppy paint jobs and broken toilets.
In that case, the risks were judged to be within acceptable limits, and no dangerous debris struck either spacecraft.
Ice is another form of dangerous debris for the dam.
This was the seventh time in 10 years dangerous debris has fallen from the drive.
But I'm not taking any responsibility for you and your pal diving into an ocean that's thick with dangerous debris.
She struggled to block the maelstrom of dangerous debris whirling within Kyne-hatred, anger, desire, guilt.
There was a great deal of smoke, but no dangerous debris.
The overnight concern was that high winds might blow dangerous debris and glass about, and the police were stationed near the more vulnerable office towers.
It would also offer some protection from flying glass and other small, but dangerous, debris.