VALLETTA (Reuters) - The wreck of a British submarine, which vanished at the height of World War Two, has been discovered lying at the bottom of the sea off Malta, university marine archaeologists said on Thursday. HMS Urge had been based with other submarines in Malta and had carried out several deadly missions when the British navy ordered it and rest of the flotilla to redeploy to Egypt because of a relentless German siege of the Mediterranean island. Urge set sail on April 27, 1942, carrying a 32-strong crew, 11 other naval personnel and a journalist. However, it failed to...