They must be silenced to save Freedom of Speech.
I'm old enough to remember when 1984 was a dystopian warning, not an instruction manual.
Even the names of the four Ministries by which we are governed exhibit a sort of impudence in their deliberate reversal of the facts. The Ministry of Peace concerns itself with war, the Ministry of Truth with lies, the Ministry of Love with torture and the Ministry of Plenty with starvation. These contradictions are not accidental, nor do they result from ordinary hypocrisy; they are deliberate exercises in DOUBLETHINK.