Ethics of using non-lethal weapons

From the Associated Press: Official touts nonlethal weapons for use:

Nonlethal weapons such as high-power microwave devices should be used on American citizens in crowd-control situations before they are used on the battlefield, the Air Force secretary said Tuesday.

Interesting. I think that if you are not willing to use a nonlethal weapon (designed for use on civilians) on yourself or your own children, then it's very likely that using the weapon on civilians in another country is unethical.