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1124-10326-10103

2025 RELEASE UNDER THE PRESIDENT JOHN F. KENNEDY ASSASSINATION RECORDS ACT OF 1992

JFK Assassination System

Identification Form

Date:

Agency Information

4/9/2015

AGENCY: FBI

RECORD NUMBER :

124-10326-10103

RECORD SERIES:

HQ

AGENCY FILE NUMBER:

62-99724-74

Document Information

ORIGINATOR: FBI

FROM: BRENNAN

TO: SULLIVAN

TITLE :

DATE:

' PAGES:

SUBJECTS:

03/17/1965

1

BUREAU SOURCE 100 (ANGLETON)

DOCUMENT TYPE: PAPER, TEXTUAL DOCUMENT

CLASSIFICATION: Secret

RESTRICTIONS:

. 1B

CURRENT STATUS:

Redact

DATE OF LAST REVIEW: 08/17/1998

OPENING CRITERIA: APPROVAL OF CIA

COMMENTS:

v9.1

NW 50953

DocId: 32313175

Page 1

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OPTIONAL FORM NO. 10

5010-106

OSA GEN. REG, NO, 37

UNITED STATES GOVERNMENT

Memorandum

SECRET

TO

Mr• W. Ce Sullivan

FROM

MX • D. J. Brennan,

5-24-9 8ATE: 3/17/65

TED BY 4500/K0

CLASSIFY ON: 25X / 6/40

1 Tolsc

Megion

De Loach

Casper.

Callahan -

Conrad _

Felt

Gale -f

Rosen

Sullivan

Tavel _

Trotter

Tele. Room

Holmes -

SUBJECT:

BUREAU INFORMANT 100

RU)

In 1954, a procedure was approved whereby we could attri-

bute certain information received

Irom James Angleton, CIA, under

the symbol "Bureau Informant 100."

This information,

for the most

part, emanated from a liaison arrangement which CIA maintained with

the Israeli Intelligence Service and from other sources under the

control of Angleton. Much of the information developed by Angleton

was not disseminated within CIA but he felt that the data should be

passed on to the Bureau.

Allen Dulles gave him authorization to

handle dissemination in

this matter.

We continue to receive

tion of

informa-

-value on a regular basis.

At le

By SAC Letter 54-27 dated

5/25/54, we informed the field

regarding Bureau Informant 100 and issued instructions that informa-

tion from this source be described under an appropriate T symbol and

characterization:

Because of the passage of time and since some

offices, have had rare occasion to receive Bureau Informant 100 infor

mation,

it is believed desirable to reiterate instructions to the

field. This should be done since the Informant has been developing

information in recent months regarding the travel of U, S. citizens

S to Russ

U. S.

via Israel:

Such travelers come from various parts of the

ACTION:

Massified oy

28/89 SPUEL

AKFA

ALL INZORHATTON CONTAINED

Declassify da: OADg/059-488-1826

EXCEPT WHEND SAONN

OTHERWISE

If approved, there is enclosed herewith a recommended SAC

letter.

CIA HAS NO OBJECTION TO

Enclosure -

DEGLASSIEIGATUN ANDIRECT

RELEASE OF CIA INFORMATION

1

Belmont

Mr e

Sullivan

Mr o

'Wannall

Mr e

Branigan

Mr •

R: Wo Smith

Mr •

Mr •

Baumgardner

Bland

Liaison

Mr. Papich

SJP:chs

(10)

west,

NUTHIS DOCUMENT EXCEPT BRACKETS

L618-0/98

82

2-997247

ish

frand fend

12

TO MAR 24 1965/96 J5

356N 56N02

58 MAR 3 0 1965

MAR 24 1965

SECRET?

ACCah-89111

HY 50953 DooId: 32313175 Page 2

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