(Credit: Getty/Michael B. Thomas) One of the most contentious arguments within the larger gun control debate is over whether right-to-carry laws that make it legal for gun owners to carry loaded weapons in public, usually concealed on their person, make people safer. Gun rights advocates argue that packing heat is a prevention against crime and violence, invoking slogans like, “An armed society is a polite society.” Gun control proponents, however, argue that a proliferation of loaded weapons is bound to lead to more violence, if only because people have easier access to the means to harm others. John Donohue, a legal researcher who works for Stanford Law School, has been working on this question for the better part of two decades.