Well, there sure are a lot of Corner readers who know their machine guns. There were, indeed, two different weapons pictured in the photos I linked to. In any case, the consensus was that, as one reader put it, “If narco-terrorists have these weapons, they did not get them at gun shows in the United States.” But since these weapons were probably originally sold or given by us to some banana republic government somewhere, another reader suggested a different rallying cry for those complaining about the import of weapons to Mexico: “Don’t sell weapons durable enough that they outlast favorable political conditions in the countries to whom they are sold and thus end up in the inventory of narco-trackers decades later.” So, the dodgier the country, the crummier the weaponry we should send them — sounds about right.