District 13

District 13 was one of the thirteen districts of Panem. Its industry was nuclear weapons. It was supposedly obliterated during the Dark Days as a warning to the other twelve districts of the Capitol's might. The district is now said to be uninhabitable, the ruins supposedly still smoldering from the toxic bombs dropped upon it. The Capitol, after the Dark Days, lead Panem's population to widely believe that the official, main industry of District 13 was graphite mining. However, this was a cover for the truth: nuclear technology research and development, including weapons. While the surface of District 13 remains scarred and uninhabitable, its residents live deep underground, hidden away from the world and the eyes of the Capitol. The Capitol leaves District 13 alone, and none of its residents participate in the Games because they are not ruled by Panem.