The interrogation of German prisoners indicated that uranium and thorium were being processed in Germany, mostly at the "Auergesellschaft" plant at Oranienburg, so Groves arranged for the plant to be bombed on 15 March 1945.
Uranium and thorium were being processed in Germany, mostly at the "Auergesellschaft" plant at Oranienburg, so Groves arranged for the plant to be bombed on 15 March 1945. This was what the interrogation of German prisoners indicated.