Chinese Type 093 class SSN (nuclear attack sub) was recently seen moored at their new naval base on Hainan island. This base, just north of Vietnam, must make the Indians nervous, because more and more Chinese warships are showing up in the Indian Ocean. It was only a year ago that China confirmed, as many suspected, that the first Type 093 boar entered service in December, 2006. Officially, that was a secret, and Chinese nuclear subs don't go to sea at much, so it's difficult to tell if new ones are actually in service, and not just tied up at...