Professor Adam Habib, the deputy chancellor of the University of Johannesburg and a prominent political scientist and commentator in South Africa was met by armed guards on 21 October 2006 at New York’s airport. He was questioned by US officials about whether he had ties to terrorist organizations and deported afterwards.
Habib was coming to the United States to attend meetings at the National Institutes for Health, the Centers for Disease Control and Prevention, the World Bank, Columbia University, and the Gates Foundation. For reasons they have not disclosed, the State Department has labeled Habib a terrorist, and he remains indefinitely barred from visiting the United States. The State Department has subsequently extended the ban to Habib’s wife and his 7- and 11- year old sons.
His supporters suspect the ban was because of his vocal criticism of the war in Iraq and United States foreign policy in general.
His ban to enter to the US was lifted after four years on 21 January 2010.