In 1975 and 1976, the French philosopher Michel Foucault delivered a series of lectures titled Society Must Be Defended. In one lecture, he spoke about what is known as Foucault’s boomerang, “It should never be forgotten that while colonisation, with its techniques and its political and juridical weapons, obviously transported European models to other continents, it also had a considerable boomerang effect on the mechanisms of power in the West, and on the apparatuses, institutions, and techniques of power. A whole series of colonial models was brought back to the West, and the result was that the West could practice...