This article is interesting in light of the many prophecies regarding a russian and chinese surprise attack on the US via nuclear submarines by Henry Gruver and others. Not sure as to the validity, but good to know in case. The first link is the article and the second is an account of the prophecies. Also interesting to note that the Russian akula submarines were undetected off the west coast I believe for an extended period of time just a year ago. The third link documents that event.

http://www.washingtontimes.com/news/2013/oct/31/inside-china-nuclear-submarines-capable-of-widespr/

http://onecanhappen.wordpress.com/2012/07/12/audio-henry-gruvers-3-visions-russian-and-chinese-invasion-of-america-when-russia-opens-her-gates-and-lets-the-masses-go-the-free-world-will-occupy-themselves-with-transporting/

http://freebeacon.com/silent-running/

Steve M