TOKYO -- A new security risk may face Japan: China maintaining a constant military presence in the Sea of Japan, a possible launching point for nuclear weapons aimed at the U.S.
Body of water could offer Chinese ballistic missile subs a place to hide

This Chinese H-6 bomber was spotted flying over the Sea of Japan in December in this image provided by Japan's defense officials. (Japan's Ministry of Defense via Kyodo)
TOKYO -- A new security risk may face Japan: China maintaining a constant military presence in the Sea of Japan, a possible launching point for nuclear weapons aimed at the U.S.