OSLO (Reuters) - European church leaders boiled holy water for a riverside ceremony in Norway this week because local officials feared it might otherwise kill fish when poured into the river. "The danger was probably small but we had to be cautious about pouring water brought from around Europe into a salmon river," Johan Aurstad, senior advisor at the Norwegian Animal Health Authority, told Reuters Thursday. A gathering of 126 bishops and other Protestant, Catholic and Orthodox Christian leaders in the Norwegian city of Trondheim boiled flasks of holy water for 10 minutes to kill any bacteria before pouring it...