From memorandum: "The Secretary asked Mr. Foster to present the issues for discussion. Mr. Foster stated that findings reported by Project Vela and by AFTAC hold some hope for modification of the present U.S. position on a nuclear test ban. These findings have received intensive consideration. As the result of press coverage, Congress has been taking a substantial interest in the matter. Alternative approaches have been discussed with the Congressional committees, which have been informed that no decision has yet been made. The alternatives presented for consideration by the Principals have been reviewed by the scientists and by the Deputies."