Shiroki Mitsunari does not remember seeing bears in the picturesque Japanese mountain village of Shirakawa when he was a child. But since a cub attacked a Spanish visitor there last month, protecting residents and the throngs of tourists who flock to his hometown to see its UNESCO-listed thatched-roof cottages has been his top priority. “There are a lot more bears coming,” said Mitsunari, 40, a local official overseeing efforts to deter bears in the village , located in a remote valley in