One change was made to the over-all camunications scheme, Task Force scnt down a requirement for a Joint rad/sefe radio operator position on circuit J-411 in the radsafe officc aboard the Command Ship.?? This was installed by Task Group 7.3 and thc 40C sct up circuit checks starting at 1400 on 10 March, | To give better protcction to classificd messages cnerynted in an off-line systcm, the GODRESS (a tyne of system in which the addressees are encrypted in the text) mcthod was used, Duc to the addressees being at numerous locations in the Pacific Proving Grounds, (of which the originators of messages had no knowledge), considerable retransmission was requircd, Because the messages had to be deciphered before the addressees were known, the dclay was too great to mect operational re= : quirements. Thereforc, JTF SEVEN made a decision that the operational ” necessity outwoighted sccurity and that PLLINDRESS (a tyzc of mcssage in which the complete address is contained in the heading) method would be used 98 The total sccurity vrotcction af orded by SIGTOT-S.iSON to unclassified messages destined for the Zone of Interior was sacrificed to allow altcrnate routing over non-sccured circuits. 9% 411 cormunicntions preparations were complete for ROiEO to R-l Dey, but, the shot was nosponed bccenusc of unfavorable weather conditionss 57 - Nse fr CJTF 7, DTG 060028Z, Cont] No. 3~2964C 58 - Msg fr CJTIF 7, DTG 0800182, Contl No. TC-4717-X--U 59 - Msg fr CJTF 7, DIG 080300Z, Contl No, 3~3005C 53 SS