If it wasn't bad enough that the US may have destroyed the fledgling Kyoto Protocol by refusing to sign on, now they may be about to undermine the well-established Montreal Protocol too. The Montreal Protocol has been working quite well for several years now, but if the US decides not to bother respecting its commitments on methyl bromide, it might be reason enough for a lot of poorer countries to ignore their own commitments. It's kind of ironic that their excuse for not ratifying Kyoto was that developing countries shouldn't receive special treatment, but now they expect special treatment under the Montreal Protocol.