actualy the convention does not ban HP's. We meaning our fine congress chose to interpet the section of the convention that states, paraphrazing here "weapons desigend to cause undo harm" as if shooting someone is not going to harm them, to include HP's. There is no reason other than our fata$$ politions sitting in thier nice safe offices decieded this.
Also Iraq is not a signatory of the convention so technicaly we can do anything, but we don't because of............well see above