"Dear Mr. Prime Minister, I am sure you will agree that there is no more urgent business for the whole world than the control of nuclear weapons. We both recognized this when we talked together two years ago, and I emphasized it again when I met with Mrs. Meir ... The dangers in the proliferation of national nuclear weapons systems are so obvious that I am sure I need not repeat them here. "It is because of our preoccupation with this problem that my Government has sought to arrange with you for periodic visits to Dimona. When we spoke together in May 1961 you said that we might make whatever use we wished of the information resulting from the first visit of American scientists to Dimona .....I had assumed from Mrs. Meir's comment that there would be no problem between us on this...." -- John F Kennedy, 1963, stern private letter to Israeli Prime Minister