To: COMMUNICATIONS SECTION. OCTOBER 13, 1950 URGENT Transmit the following message to: SAC, LOS ANGELES FLYING SAUCERS. YOU ARE INSTRUCTED TO DISCREETLY DETERMINE THROUGH APPROPRIATE RELIABLE SOURCES OF YOUR OFFICE WHETHER [REDACTED] AUTHOR OF THE BOOK QUOTE [REDACTED] [REDACTED] UNQUOTE IS IDENTICAL TO THE [REDACTED] WHO HAS BEEN ACTIVELY ENGAGED IN COMMUNIST ACTIVITIES SINCE THE LATE NINETEEN THIRTIES IN THE TERRITORY OF YOUR OFFICE. HOOVER EHM:gmu [unclear] RECORDED - 95 INDEXED - 95 162-83894-253 [unclear] Tolson Clegg Glavin Ladd Nichols Rosen Tracy Egan Gurnea Harbo Mohr Pennington Quinn Tamm Nease Room [unclear] FEDERAL BUREAU OF INVESTIGATION U. S. DEPARTMENT OF JUSTICE COMMUNICATIONS SECTION OCT 13 1950 TELETYPE 5 OCT 26 1950 SENT VIA COPIES DESTROYED 170 NOV 23 1954 [unclear] Per [unclear] RECEIVED READING ROOM FBI U.S. DEPT. OF JUSTICE OCT 13 1 30 PM '50