Inactually do think it can be difficult to have open debate regards, say immigration, the topic raised. Race is an emotive and sensitive subject, people are quick to jump to infer meaning one way or another. Cries of racism or political correctness gone mad arise with unerring regularity. Is there a 'gagging order', I don't think so. But debate can very hard to keep focussed and I think,, particularly on here, met of us just avoid it. Some do however bring it up alot, relevant or no.