The New York Times reported last week that the United Nations General Assembly voted overwhelmingly to approve a pioneering treaty aimed at regulating the enormous global trade in conventional weapons, for the first time linking sales to the human rights records of the buyers. Although implementation is years away and there is no specific enforcement mechanism, proponents say the treaty would for the first time force sellers to consider how their customers will use the weapons and to make that information public. The goal is to curb the sale of weapons that kill tens of thousands of people every year.