http://dailysignal.com/2015/09/05/mexic ... ms-treaty/
Mexico has been one of the leading campaigners for the ATT. It wants to use the treaty to promote gun control in the U.S.
Mexico’s theory is that, since any gun in the U.S. might at some point conceivably cross the U.S. border, all U.S. guns have to be controlled in the name of controlling the international arms trade. That’s not going to happen at this meeting (or ever, if the U.S. retains its sanity).
It’s even less good that Mexico’s spent much of the past year colluding with the activists to keep skeptics (like myself) out of the room. Their view was that only true believers who campaigned for the treaty should be allowed to see what’s going on.
You might wonder what they’re afraid of. We skeptics make no secret of our views, but we’re a well-mannered bunch: no spitballs. However, if we were always in the room, we’d report on exactly how closely the activists are working with Mexico and other likeminded nations.
The activists—led by the global Control Arms Coalition, which has a massive presence at Cancún—are the only insiders in the treaty process, and they want to keep it that way.