We've done studies of the functioning of the weapon itself, and that's one of the reasons we use compressed nitrogen, so we can have them function in the cold. The batteries are really going to be the limitation, to manufacture the power supplies.
In terms of the medical studies, our direction was more on the concern that a taser application--and Ms. Priddy mentioned the acidosis--was more related to increasing body temperature, which we did not see in the research that was published. But in terms of the research that I'm aware of, we haven't tasered anybody who's been put into a cold environment .