The Norwegian Government has announced that the wreck of the WW2 German submarine U-864, which contains 65 tons of mercury, is to be raised, and that the contaminated seabed be covered with clean sand. The submarine, which lies off the Norwegian west coast near Fedje, north of Bergen, has long been considered an environmental hazard by environmental groups and local people. However, experts have disagreed on whether or not the wreck should be raised or if it would be better to build a sarcophagus which would isolate the mercury from the marine environment, thereby eliminating the pollution hazard. Head of...