W. E. B. DuBois wrote in 1903 that `the problem of the twentieth century is the problem of the colour line - the relation of the darker to the lighter races in the various areas of the world in which they interact'. As the century draws to its close, this remains true; if anything the salience of race and racism in all its manifestations has grown in the recent past. The last few years have witnessed a growth in academic interest in racism, and in related issues such as nationalism and ethnicity. . .