31.   The fact that all but one of the half-dozen callers said they were asking questions for their friends showed how taboo it is to discuss sex in Vietnam.

32.   The lecturer refused to discuss sex, deeming it inappropriate for television.

33.   The Mirror quoted Clarke discussing sex with young men and called him a pedophile in its Sunday editions.

34.   Tackling the issue is difficult in PNG, where there is a cultural aversion to discussing sex.