Freedom of speech

In the arena of literature freedom of speech is a prime concern. This is true that the real progression of society and censorship do no go hand in hand. But the question is should there be a threshold point for freedom of speech? Should one express whatever she or he likes in the name of freedom of speech? These questions arise after reading Taslima's book "Ka". It is one of the autobiographies of Taslima. Reading this book one may summarise that Taslima's private life is the main focus of this book.
Perhaps, in this book, by exposing her private interactions with some celebrities of the country she has tried to reveal the 'hypocrisies' of these men. But the question is whether Taslima's claims in this book are true or fabricated? She has admitted in her book that nothing happened without her consent. Then why has she bothered to expose these in public? It may be mentioned that sexuality of a person is a completely private affair and exposing it in public is quite indecent.
Those who advocate freedom of speech must understand that the freedom does not give free licence to express whatever we like. Rather we should have a self-imposed censorship so that our writings do not go against social norms and ethics.