Vice Admiral William S. Sims, Commander, United States Naval Forces Operating in European Waters, to the Office of the Chief of Naval Operations
DESPATCH TO BE SENT
Date June 10, 1918
Prepared by CS No. S.B.
Simben 8. Press reports indicate possible Congressional investigation of circumstances connected with operation of U-151 in American Waters. I suggest the extreme importance of not permitting any publicity of the fact that you were furnished positive advance information as to the movement of this vessel. Admiralty fears and I concur that the disclosure of the fact that we knew of the prospective movements of this vessel would entirely prevent similar information being obtained in future. <16210.>
Source Note: Cy, DNA, RG 45, Entry 517B.