In 1972, or so the story goes, an important man had a dream. Not an inspiring dream like Martin Luther King, but a vision that would spark one of the cruellest episodes of the 20th Century.
The man was General Idi Amin, ruler of Uganda in Africa. The dream itself – where he was told by God to cleanse his country of foreigners – may just be an urban myth spread by his supporters, but his actions were real. Out of the blue he ordered all people of south Asian origin to be expelled from the country, or face concentration-style camps.