The preservation of displaced cultures is important in preventing future oppression.  Notions of cultural superiority virtually always influence displacement and abuse of indigenous cultures. For example, when the government of Botswana expelled the Kalahari Bushmen from their land in 2002, President Mogai defended his actions by describing the bushmen as "stone age creatures."1 This cultural insensitivity, in addition to the incentive of material gains, led the Botswani government to violate the tribe's rights. By preserving indigenous culture, governments recognize the value of these groups and prevent future hostility.  1 John Simpson, "Bushmen Fight for Homeland," BBC, 2005