Those three voted no because if the treaty is fully enforced and followed by the countries that signed it, it will be very hard for them to aquire military technology. And by that I mean everything from small arms to helicopter gunships.
NRA Life Member
Big Sister: "You should be sponsored by Allen"
Me: "If you can't shoot good, at least look good walking to the firing line."
Big Sister: "Can you not afford a Pelican? Then buy an Allen gun bag."