Who Defends Freedom of Thought and How?

For the greater part of my life I was accustomed to take for granted certain civil liberties, including the freedom of thought and speech. Now, as I approach the end of life, the freedoms I had taken for granted are in need of defence. It is true that for a short period, during the regime of Emergency, freedoms were curtailed. They were then curtailed by legal means. Today freedoms are being curtailed by extra-legal means. Therefore I suppose the resistance to such curtailment needs to be different. But I do not see much evidence of re-thinking of strategies of resistance.