The killing of a black teenager by a self-appointed vigilante in Florida has trained a spotlight on gun laws reminiscent of the Wild West in 24 U.S. states. Despite widespread outrage over the Florida case, gun-friendly senators in Washington want to make it easier to extend those laws to most of the country. That would set the United States, where there are more firearms in private hands than in any other country, even farther apart from the rest of the industrialized... (GunPolicy.org)