Oliphant took the Frisch-Peierls memorandum to Tizard in March 1940. He passed it on Thomson, who discussed it with Cockroft and Oliphant. They also heard from Jacques Allier of the French "Deuxieme Bureau", who had been involved in the removal of the entire stock of heavy water from Norway. He told them of the interest the Germans had shown in the heavy water, and in the activity of the French researchers in Paris. Immediate action was taken: the Ministry of Economic Warfare was asked to secure stocks of uranium oxide in danger of being captured by the Germans; British intelligence agencies were asked to investigate the activities of German nuclear scientists; and A. V. Hill, the British Scientific Attaché in Washington, was asked to find out what the Americans were up to. Hill reported that the Americans had scientists investigating the matter, but they did not think that any military applications would be found.