The Foreign Secretary did not answer the third question put by my right hon. Friend the Member for Knutsford (Mr. Davies) about the American rôle in this matter, inasmuch as any settlement will not be the end of the Southern African problem unless there is some kind of Western interest and guarantee. Will the right hon. Gentleman now answer my right hon. Friend's third question and complete another answer which he gave to one of my hon. Friends by saying what the attitude of Her Majesty's Government will be if the conference at Geneva, or wherever it resumes, breaks down, not through the intransigence of Mr. Smith but through the intransigence of the African nationalists? In those circumstances, will the Government propose the cancellation of sanctions?