A. Physical chemistry.
Q. In general terms, what was group
"K concerned with?
A. With high explosives.
[At this point in the testimony, Greenglass explains that after certain personnel change-, he' became assistant foreman of the Los Alamos machine shop
and in late 1915 or early '46 he became
-Imp foreman for several months prioi
to his honorable discharge from the
Army as sergeant T/4 in February.
Q. Now. going back to the time when
vou undertook vour duties as a machinist at this "E" shop out al Los Alamos,
would you tell lhe court and jury, in
general terms, jusl whal your duties
wen—what you did over the period of
time vou were working in lhe machine
shop, as a general proposition?
A. Well, the shop itself took jobs
from various scientists and made apparatus whenever they needed it; and
there were two methods of jobs coming
through the shop. When ei scientist needed a piece of apparatus, he just sent il
through procurement and it was sent to
either one of the three shops in the
That was one way; and they would be
distributed according to how much work
each shop had. Thc other way was go
direct!) lee Fits I I'ilzpalrirk. who was
in charge of procurement and the machine shop of "E" group al one' time I
and say, "How about getting this job
done?" And usually il was put through,
or the sketch or piece of paper or the
scientist talking to one of us machinists
lo do it.
Q. In other words, ii was your job to
machine thi- particular apparatus ."
product lhal lhe scientist required in
connection with his experimentation on
atomic energy : is that correct?
A. That is correct.
Q. Now, did the physical location of
—Wide World Photo
David Greenglass as he testified at Federal Court, New York, March 12, 1951.
your L'E" shop remain the' same during
your entire slay al Los Uamos?
A. No. il didn't. In the fall. 1911.
we had a building built and the whole
procurement section moved into thai
building. It was called the "Theta"
',*. Did vou continue to do work such
a- lhal which you have described lo us
until the' lime lhal you left l.os Meliuos?
\. I did.
0. Ami have' teild us aboul the securi-
Iv talk- vou had al Oak Ridge and aboul
what vvas lold you concerning the- secret
nature of your work when you got oul
lo Los Alamos. In addition to ihcse oral
instructions, were' you given any written material containing security regulations and telling vou just what vou were
ai liberty to disclose and what you
should not disclose?
\. I was give'ii such a book.
Q. 1 mighl read just a few brief por-
tions lo the jury. The exhibit itself i-
marked "Restricted." The word een the
beginning of the first page is "Security."
The firsl two paragraphs read ;is follows:
This lciintlii.uk liei- been designed tee pro-
viele- members of tin- technical area staff anil
their families with a concise summary of
existing security regulations. Ii should he
understood licit tu obey these regulations is
ei minimum requirement. There is ee further
obligation on the pan uf everyone ". main-
tain a constant and intelligent interest it
tin' prevention itml reporting of all incidents
evhose- occurrence endangers the- security of
til." project, Il i- el liel-ie- policy nl tlle- proj-
ecl ilieei e-eciveeiee- working here should knot*
whatever i- required feee- doing his job well.
Il i- therefore "f greatesl importance lor
each J.'-fseeei tee II mid-tenid that lie is in ei
position of trust with regard "> .ill such information and eel-o with regard tee infonn;i-
tieiri which Ii.- may accidentally gain eeheeni
other confidential matters.
There is further descriptive material.
(In page- 2 there is a section entitled
i \l There musl tu- me conversation out-
-i<Ii- the- technical area, ier in tin- presence
eel unauthorized persons, anil no information in persona] I'-tte-rs, conveying eney eef the-
following kinels eef information:
1. Tin- purpose '" tin- project.
2. The general problems being worked on.
3. Technical data connected with 1 or 2
I. The scheduling or general progress of
.">. \ei\ over-all account ..f th.- personnel
employed "n the project,
6. The- procurement or presence here of
essential materials ait.1 installations,
Hy "unauthorized persons*' are meant persons whom vim do not know to have- the
permission uf their group en- ilivisiuneil lead-
ers .a- tic- elire'eteir to receive tie- information
(Ill There must tee- no conversation outside the post, en- in the- presence eef unau-
ttieeei/eel pease,ns. and nee i tl feu IlKil inn ill |.ee-
soneil letters, conveying eenv of the following
kimls eef information:
1. Tlie professions or Former r innections
of persons working in the technical area.
2. '['lie' tieiiiie- ..I tie.- contractor under
whom lhe- project Is lee-ine: run.
'.. Affiliation of this project with other
1. The size- of the project eel post, en "il"'1'
-i::illlje'eillt le-ell llle--. SUch els U.ltel SlipplieS,
Eire-protection installations, etc.
.">. Tlle- genera] kinds eel work going em in
lln- technical .lie-.e. We are c11>iiiiccis; tin'
technical area should he- called emlv "the
Hy "unauthorized persons" are meant pi'"
-ee:i- wile, do nol liv ill eel lieiW" ;e. re— In tin'
post, oi who, living here, have ne. reason 1"
receive tin- particular e-teess of information.
". Vour address, I'. (I. Box 1663, Saul.'
I'V. ,\ee\ Mexico, eieeey l,. leieen In family.
leicnels. eitie! in private business dealing*
Dee nol use 1 .<>- \lamos stationery in privaW
(). Ilv the way, were badges worn on'
A. They wcii'.
Q. Having different significance?
\. I hey were'.
Q. How did (hey go. hy color?
A. By color.
(,). Vi hat eliel a color represent?
A. A white badge weis authorized •''
go to the seminars and be let in on a"
lhe information that was available ""
(,). Were there any other colors?
A. There vvas a red badge which a''
lowed lhe bearer lo gel all lhe inform"
lion necessar) lo he able lo do hi 1"
and then there was a blue badge wl"'
allowed well, it allowed lhe heard '
go into lhe tech area lo do various j"'''
like steamfitting or ditch-digging. 1"'
nol to be around any of lhe equipnT"
or lee see any of the experiments.
'.). Now. I assume that is what il"r
regulation refers to when il says ll'
vou are to reporl any person weeii'i"
the w um" badge to the authorities?
A. Thai is right.
Q. When observed in a certain a''''1
\. That is right.
',>. Diel vim yourself have a badge?
\. I did.
Q. \ow. specifically, v..11 told 11- i'"1
Dr. Kisliakowski weis oul al Los M""!,''
and was in facl the leader of Group "*"
Atom spy team Julius and Ethel Rose"',e
FACTS FORUM NEWS, Mare)