United States President Barack Obama continues to push for reform on gun control amid concerns that people will "become numb" to any further mass shootings, which he says are now happening on a weekly basis. His comments followed a shooting in Kansas last month in which three people died and 14 were wounded. But his attempts to do something have been frustrated by a Congress that reportedly has not approved any major gun-control legislation since the 1990s. Instead,... (GunPolicy.org)