By John Kemp LONDON (Reuters) – “Equality of opportunity as we have known it no longer exists,” Franklin Delano Roosevelt warned gloomily in September 1932. “Our industrial plant is built; It is the soberer, less dramatic business of administering resources and plants already in hand.” The pioneering era of opening up the western United States was over. The advent of steam engines and electricity had transformed American society, and now that transformation was largely complete.