In mid-1972 , he prepared to resign .
In mid-1972 , he changed his mind only because of fears of a renewed wave of immigration from Uganda after the accession of Idi Amin , who had expelled Uganda 's Asian residents .
In mid-1972 , he prepared to resign and changed his mind only because of fears of a renewed wave of immigration from Uganda after the accession of Idi Amin , who had expelled Uganda 's Asian residents .