Intelligence, Security and Public Information CJTF SEVEN No. 1-53 capabilities comparable to the Type 31. It is entirely possible that the Soviets might equip such an aircraft for photo and radiological recomiaissance if a sufficiently high priority exists for this require- ment, d. Conclusions. Espionage, sabotage, observation and unauthorized instrumentation are considered most likely to occur under conditions existing today. The declaration of war, overt action by vessel or aircraft and raids are less likely possibilities which could take place in the event of open hostilities between the U.S. and the USSR. Security. Security of classified information is the normal responsi- bility of any commander but this responsibility must be reevaluated in Operation CASTLE where the operation is dealing with atomic energy, a development which played an important part in terminating WW II and which constitutes such importance that it has been regulated, controlled and protected by Federal Law. The responsibility of each individual in properly safeguarding classified information concerning atomic energy and in preventing its compromise by careless talk or correspondence must be understood by all military ranks and civilians. General Conception. The general conception of the measures to provide security is as follows: a. The ENIWETOK-BIKINI area of operations will be closed to all vessels, aircraft and personnel except those participating. Access to this area will be in accordance with regulations established by CINCPAC Serial 020. All areas within the ENIWETOK-BIKINI operational area will be designated in accordance with the degree of security required. b. Personnel participating in the operation will be cleared for loyalty and security in accordance with the varying degrees of responsibility. ce. The ENIWETOK-BIKINI area of operations is under the general protection of CINCPAC. d. Regulations governing security published by the DOD and AEC continue to apply to members of the joint task force.- (1) AR 380-5 and SR 380-5-1 ) OPNAV Instruction 5510.1) AFR 205-1 ) GM Security Bulletins For appropriate units ) (2) Hq, JTF SEVEN Security Memoranda) Espionage Act ) Atomic Energy Act of 1946 ) AEC-DOD classification criteria ) Apply to all members of \ JTF SEVEN e. Task group commanders are responsible for security training of members of their commands. All personnel will be required to pass a basic security examination, prepared and distributed by Hq, JTF SEVEN, C=2 Rev. 9-24-42 C42.