He is the author of The Muslims are Coming! Islamophobia, Extremism, and the Domestic War on Terror (Verso, 2014), Spooked: How Not To Prevent Violent Extremism (Institute of Race Relations, 2009) and The End of Tolerance: Racism in 21st Century Britain (Pluto, 2007). A former editor of the journal Race & Class, he has been an Open Society fellow, a fellow at the International Centre for Counter-Terrorism in the Hague and a scholar-in-residence at the Schomburg Center for Research in Black Culture, New York Public Library.