Hizb-ut-Tahrir is a political party which seeks to establish a theocracy. It has, until recently, produced and openly distributed racist material. I do not think that the British government has made a convincing case for banning it, and I am not persuaded that a ban will combat effectively the ideology which Hizb-ut-Tahrir champions and propagates. Its political positions need to be challenged, both within the various communities in which it operates, and across society. The reason why extreme Islamism has not been combated effectively in Britain is that the forces best able to do so – those of the secular...