A Chinese naval submarine noticed in waters near the Japanese-controlled Senkaku Islands in the East China Sea last week was a nuclear-powered attack submarine, Japanese Defense Minister Itsunori Onodera said Monday.The Shang-class submarine was detected Thursday while submerged just outside Japanese territorial waters near the Senkaku Islands. Tokyo filed a protest with Beijing, which also claims the islands, saying the submarine's presence raised bilateral tensions.According to the Japanese Defense Ministry, the Shang-class is a new type of attack submarine equipped with ship-to-ship miss…READ FULL ARTICLE