After the Tehran Conference ended, Harriman asked Molotov whether there was really ever an assassination threat in Tehran. Molotov said that they knew about German agents in Tehran, but did not know of a specific assassination plot. Molotov's response minimized their assertions of an assassination plot, instead emphasizing that Stalin thought President Roosevelt would be safer at the Soviet embassy. American and British intelligence reports generally dismissed the existence of this plot and Otto Skorzeny, the alleged leader of the operation, later claimed that Hitler had dismissed the idea as unworkable before planning had even begun. The topic continues to be a theme of certain Russian historians.