mn: t is requested that the Federal Bureau of Investigation institute investigation for the purpose of determining the source of the Time - Life information and ascertaining whether a violation of the Atomic Energy Act or federal statutes is involved. For your assistance in inquiring into this matter, and possible bearing on the case, you are advised that a report has been received to the effect that, apparently through administra- tive error on the part ol elements of JTF 132, a radio message reflecting the time of the detonation (but not disclosing its thermoniclear character) was transmitted as unclassified (in the clear) from USS Shank at the Eniwetok test site to CINCPAC, Honolulu, and other Department of Defense installations, for the purpose of alerting certain Air Force components performing functions of interest to the long range detection program. This message was reportedly sent by the USS Shank at 2:20 p.m., Washington time, October 31, and was thereafter radio-relayed by CINCPAC at 5:22 p.m. Washington time, October 31, as un- classified (in the clear) to other Department of Defense in- Stallations. For your assistance, it is also noted that within the last few months, comments have appeared in the Alsops' columns (which as you know are now under investigation by your agency) to the effect that a thermonuclear device was to be detonated in the current Eniwetok tests. Sincerely yours, /s/ Gordon Dean Chairman Enclosures: Memo fm Salisbury dtd 10/31/52 Memo fm Thompson dtd 10/31/52 AEC,DOD release dtd 9/9/52 & 2/18/52* *Secretariat Note: Secretary. Not attached - on file in the Office of the