The Commission understands that in concurring in the delivery of Dy. Ogie's talk there will be no Restricted Date trananitted that hes not already beea jointly deternined to be tranamisaible, and that taere can be no data given concerning thermenuclear weapons expept effects data already determined to be transmissible. Sincerely yours, WE. LIbbyY (signed) ea erect Chalrman Honorable Herbert 2. Loper Chairman, Military Liaison Comittee to the Atomic anergy Commission