KABUL (Reuters) - Six people in a German military helicopter and up to eight on the ground were killed on Saturday when the aircraft crashed before landing at an airport near the Afghan capital Kabul, Afghan officials and witnesses said. The cause of the crash was not immediately known, a senior Afghan official said. Afghan officials said all six passengers had died in the crash, while a witness said he had seen the bodies of another eight people, including two children, who may have been killed when the helicopter hit the ground. A German member of the International Security Assistance...