This may apply to multiple combatants, or high volume traffic area's. Perps many times like to work in less populated areas. Then we have the perp who feels he or she can disappear in the crowd. I can see the point, but there are no perfect situations or scenario's. We have to train to do our best and hope its enough. Some people do not have a very long attention span or seem to have a good sense of awareness. Training can help, but there are people with deficit disorders.
The real danger to America is not abroad but within..
Having an open mind is a good thing, but not so open that your brains fall out!
Save America, abort liberalism.