We increasingly live in an Orwellian age where speaking out can have a high cost. Historically that has also been true - we need only think of the Nazis, Stalinism, the Inquisition, Pol Pot. But Governments have never been more capable of monitoring our every move. Our employers monitor our Facebook posts. Every phone has a built in recording device.

The premium on truth has never been higher. And nowhere more so than in politics and political parties. For the Greens, which claim higher standards, the challenge has never been greater. We need internal systems that promote honest discussion rather than suppressing them; that provide clear and independent complaints processes. We need to take the beam out of our own eye. Because blind loyalty is a curse for organisations, and one that leads to corruption and incompetence.