by Saraswati Ali, writer and lawyer in Toronto The Threat of Liberation: Imperialism and Revolution in Zanzibar by Amrit Wilson Pluto Press, 2013. 192pp. Paperback. African Studies. CDN$ 32.56 at Amazon.ca The Threat of Liberation returns to the tumultuous years of the Cold War, when, in a striking parallel with today, imperialist powers were seeking to …