Is the Prime Minister aware that the other Commonwealth Prime Ministers signed the conference communiqué on Southern Rhodesia only because they believed that the Prime Minister would call a constitutional conference? Is he further aware that two days after the conference President Nyerere told the Cairo conference on African unity: We left London confident that action would be taken "? If the right hon. Gentleman does not take action and just waits indefinitely for Mr. Ian Smith to insult him, far from his chairmanship of the Commonwealth Prime Ministers' Conference having proved a success, it will have marked one of the most disastrous moments in the history of the Commonwealth.