A German family of five, including a former high-ranking diplomat, have become the latest foreigners taken hostage by tribesmen in Yemen, tribal sources said Wednesday. They were abducted from a restaurant on the road to from the southern port city of Aden from the eastern region of Shabwa, 480 kilometres (300 miles) east of the capital Sanaa, the source told AFP. He said they have been held for some three days and that their captors had demanded "the release of tribesmen imprisoned in Aden." A German foreign ministry spokesman confirmed the disappearance of Juergen Chrobog -- who served as...