Now that politically correct language has fallen from favour, demonised and discredited, where should we go next? Can we afford to ignore the return of derogatory language directed at black, Muslim, gay, disabled or elderly people, anyone deemed different? Derogatory words make way for degrading treatment. Language is more than our basic tool of communication; it shapes perceptions and so influences behaviour. Referring to "faggots" or "wrinklies" strips people of respect, and it's just a short step to thinking them less equal. Terms such as "cripples", "spastics", "thick" and "retarded" stigmatise disabled people as less human. A recent increase in...