Business has been booming this past week at Jihana, one of Yemen's biggest weapons markets. A deadly feud has erupted between two local tribes, and fighters from both sides have been rushing to stock up on weapons. "We stayed open until midnight yesterday to cope with the demand," said arms trader Muhammed Qubban. Trade is brisk and when a pick-up carrying four masked men arrives, Qubban and other traders are on their feet to sell guns and ammunition. "They're from... (GunPolicy.org)