too late to worry about that now:
Nonlethal weapons such as high-power microwave devices should be used on American citizens in crowd-control situations before being used on the battlefield, the Air Force secretary said Tuesday.CNN 12.09.06
The object is basically public relations. Domestic use would make it easier to avoid questions from others about possible safety considerations, said Secretary Michael Wynne.
"If we're not willing to use it here against our fellow citizens, then we should not be willing to use it in a wartime situation," said Wynne. "(Because) if I hit somebody with a nonlethal weapon and they claim that it injured them in a way that was not intended, I think that I would be vilified in the world press."