" Prior to the arrival of both the president and prime minister, listening devices and directional microphones had been concealed in the principal rooms of both the Villa Vorontsov and the Livadia Palace. Members of the British Military Mission in Moscow—all too familiar with eavesdropping—recommended discussing sensitive issues in the bathrooms, with the taps gushing water to drown out their conversations. "

― Giles Milton , Checkmate in Berlin: The Cold War Showdown That Shaped the Modern World