The first two decades of this century will be remembered for the #MeToo movement. It started with the scores of abuse allegations against Harvey Weinstein. As part of Radio National's The Big 20: Our Century So Far, Big Ideas brings you Ronan Farrow's harrowing account of his investigation. It’s not a story about sex, but about the abuse of power. He shows up a system created by rich and connected men that’s permitted that type of behaviour. A network of gatekeepers from media, politics and business made sure that the victims stayed quiet.