I likewise haven't called for a moratorium on it. I think it fits with appropriate training and use. We have to bear in mind, and it may flow from the poor training, poor use, and some of the bad examples we have seen, that there is an impact on the public's acceptance.
Somehow it does provoke a response from the public that is different from a baton and a gun, believe it or not. You don't have the same outcry as to a taser. The military can blow each other to tiny little atoms, but you're not allowed to use poison gas; you're not allowed to blind someone. There is a hidden element that we have to get our minds around as well, which is public acceptance of the appropriateness.