UK event venue Peterborough Arena has called for the geocaching game Pokémon Go to be turned off at the East of England Showground site. The augmented reality videogame has attracted millions of players across the world, and was launched in the UK this month. Making use of GPS and the camera of compatible devices, the game allows players to capture, battle, and train virtual creatures (Pokémon), who appear on device screens as though in the real world. Head of operatio...