Gathering or Get Together (older chat room term)
Just 50? Do they carry food for a 2 day search?
It depends on the search....so far, most are 24 hour affairs if its for a missing person, but can be months if a disaster response....for Irene and Sandy for example, I was away from home for months.
For small areas, a half dozen people can sometimes cover areas the choppers can't see, etc.
Night vision and FLIR, etc, can find stuff really well under many conditions...but sometimes you need to beat the bushes...as you need to get a line of sight and in some places, that means you are on the ground.
Drainage ditches are a good example. If there's over head tree/canopy obstructions...anyone in a ditch is invisible even with FLIR, and often the ditches wind about, so you can only see so many yards of a ditch at a time. You end of walking down the ditch, as even shining down the banks means the weeds, etc, can keep you from seeing INTO it, etc.
If you only have a 50 yard line of sight, and need to have men on the ground following trails and ditch runs and so forth, you just can't hand out 50 pieces of $6k - $50k equipment ('cause you don't HAVE it)...you might have one or two of the fancy stuff, and then you use flashlights for the rest.
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