U.S. Navy docks missile sub at Yokosuka, affirms solidarity with Japan in
China row. Mainichi Shimbun, Oct. 3, 2010 (available now). http://mdn.mainichi.jp/mdnnews/news/20101002p2a00m0na010000c.html
My comment: Ohio-class submarine can be equipped with Trident missiles (with
nuclear warheads) or with cruise missiles. USS Michigan is the latter.
Wikipedia.