Dear Prime Minister Yukio Hatoyama,

In the fall of 1980 I was assigned as a civilian university professor to provide Japanese language instruction to the officers and men of the USS Knox (FF-1052), a destroyer home-ported in Yokosuka. Sharing quarters with the ship's nuclear weapons officer, I soon became aware that the Knox was outfitted with an ASROC antisubmarine missile system including nuclear depth bombs.