As someone who grew up in the Deep South, I'm inclined to think it's useful for exactly what it's tested for. (At least, once upon a time.)
I'm reminded of a Usenet post I read in the '90s from an Army helicopter technician who expressed his frustration at ranchers shooting at the "black helicopters"; the technician spent too much of his time (i.e. > 0) patching the holes.
I'm reminded of a Usenet post I read in the '90s from an Army helicopter technician who expressed his frustration at ranchers shooting at the "black helicopters"; the technician spent too much of his time (i.e. > 0) patching the holes.