DOCUMENT C
SECRET

P.O. BOX 2610
WASHINGTON, D.C.

Declassified
E.E. 11653
NND 730039
By ERC   NARS, Date 6/5/74		10 November 1943.

Classification cancelled Date 3/13/61
For the Atomic Energy Commission

Chief, Declassification Branch

Lt. Colonel H. M. O'Connor,
British Combined Chiefs of Staff,
Public Health Building,
Constitution Ave., 19th & 20th Sts.,
Washington, D. C.

Dear Colonel O'Connor:

	I am enclosing a copy of the report of a committee on
the use of radioactive material as a military weapon.

	For your information we are not approving the
recommendations of the committee at this time.  Subject to
the approval of higher authority we are recommending that a
small group of officers be trained on the technical aspects
of this phase of possible warfare, attached to American
Headquarters in London in order that they can give prompt
information of any real or suspected use of this material by
the enemy.  These officers would do this as an addition
rather than as a primary duty.

		We are continuing our efforts to improve methods
of detection and protection to procure a small number of
portable detection equipments.

						Sincerely,



						L.R. GROVES,
					Brigadier General, C. E.

1 Incl.
	Report-15 pgs., 1 of 2 cps. Series B