h. Handling - This term includes preparation, processing, transmission, and custody of classified matter. i. Marking - The physical act of indicating on classified matter its assigned classification and any special limitations or instructions. j. "Need to Know" - The requirement that the dissemination of classified matter be limited strictly to those persons who are properly cleared and need classified information to perform their official duties. k. Security - The result of measures taken by individuals or a unit to guard against espionage, observation sabotage, communications intercept, annoyance, or surprise. Security is the protection of classified matter to prevent unauthorized persons from obtaining information of direct or indirect military value. 1. "Restrictec Data" (AEC) - As defined by Public Law 703-83rd Congress (Atomic Energy Act of 1954), Restricted Data means all data concerning design, manufacture, or utilization of atomic weapons; the production of special nuclear material; or the use of special nuclear méterial in the production of energy; but shall not include data declassified or removed from the Restricted Data category by the Atomic Energy Commission. SECTION II BASIC SECURITY RESPONSIBILITY 6. SECURITY IS A PERSONAL RESPONSIBILITY! a. Joint Task Force SEVEN's mission to conduct overseas atomic tests. In the interest of national security, the details of these tests and the scientific data obtained from them are not publicized. Such information must be protected because of its vital nature, so it becomes classified information. b. As @ member of Joint Task Force SEVEN, you will have access to sensitive information concerning atomic energy and AEC operations, Your presence at the Pacific Proving Ground alone will expose you to classified information. The loss of this information to other nations, whether accidental or deliberate, could cause grave damage to the United States. To be assigned to JTF SEVEN, you must have or be eligible for a security clearance. But your personal responsibility toward security does not stop with this purely administrative determination. Your responsibility does not end when you lock your safe; leave your office, station, or ship. Security and security consciousness must be a part of your make-up everywhere, always. This obligation has no middle ground--all must be alert to protect classified matter in thought, ~. LOOSE TALK. talk, and action, Loose talk is any remark made directly toor within the hearing of anyone not authorized such information. Don't talk about classified matters with people just because you - él - Annex "C" to Appendix "B"

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