COM Lf FOR Em, / THE ROCKEFELLER UNIVERSITY 1230 YORK AVENUE NEW YORK, NY 10021 March 10, 1980 JOSHUA LEDERBERG PRESIDENT Mr. W. Graham Claytor, Jr. The Deputy Secretary of Defense Washington, D. C. 20301 Dear Mr. Claytor: I was honored to receive your invitation of February 29th to participate in the 45th JCOC to be held this June. With deep regret I have to say that it is impossible for me to accommodate my schedule to this opportunity on this notice. As you may already have been aware, I have recently been seconded to the Defense Science Board and this has given me some opportunity to intersect with a variety of problems concerning the Department of Defense; nevertheless I regret not being able to take advantage of this extraor- dinary opportunity at firsthand observation of some of our bases and operational forces. Although it is therefore not possible for me to attend on this occasion I wonder if I could ask for some of the major annual publications of the National Defense University which have dealt with an overview of our security challenges. If I am not mistaken there has been an annual series that may well have been used in connection with previous JCOCs or Similar conferences. = Sincerely, Sede Lederberg