From the Telegraph (UK):
A judge in Australia has been criticised after saying incest may no longer be a taboo and that the community may now accept consensual sex between adult siblings.
Judge Garry Neilson, from the district court in the state of New South Wales, likened incest to homosexuality, which was once regarded as criminal and “unnatural” but is now widely accepted.
He said incest was now only a crime because it may lead to abnormalities in offspring but this rationale was increasingly irrelevant because of the availability of contraception and abortion.
In fairness, reactions to his statement have largely reflected outrage; however, I think many of us would recall that this was largely the reaction of those who said homosexuality was morally neutral (or good) before the 70s.