Since the advent of multiculturalism in the 1970s, the redefinition of race in cultural terms has gone hand in hand with an official discourse of respect for cultural difference and diversity. Today, in the wake of 9/11, the rhetoric of tolerance is visibly breaking down. As state policy shifts from the celebration of difference to an anxious call for assimilation, the racial other (whether citizen or immigrant) is under renewed pressure to integrate herself into society. In this issue of Mute, contributors read the crisis of multiculturalism - political, scientific and social - as both a neoliberal offensive and a challenge to rethink the relationship between particular identities and universal rights, evolutionary science and biopower. Texts by: George Caffentzis, Matthew Hyland, Daniel Jewesbury, Marek Kohn, Eric Krebbers, Hari Kunzru, Melancholic Troglodytes, Angela Mitropoulos, Luciana Parisi, Benedict Seymour