It was at a local debate competition, where the motion was that only a women's liberation movement could bring about all round progress in society. It was here that I learnt about the free nipple

It was at a local debate competition, where the motion was that only a women's liberation movement could bring about all round progress in society. It was here that I learnt about the free nipple movement. Can someone please tell me more about this ? Is it something similar to the bra burning feminism ??