With luck, rational people in Canada will just drop the idea, rather than throwing more money down a registry that just isn't likely to have any significant social benefit.
If that happens and it is publicised properly in the US, then gun control as we know it may need to transform itself into something totally different and die a slow death.
I would only be for Kyoto if pro-Kyoto Canadians volunteered to be used as environmentally friendly biomass fuel for the rest of us. Thus improving the economy, the political landscape, and the environment in one easy step.