This week on Q+A… Power and influence: who has it, who wields it and how it's used to make change. As Rupert Murdoch announces he's stepping down as chair of Fox and News Corp, we look at his impact. Plus the COVID inquiry, the Voice campaign and making a difference: whether it’s through politics, a high profile or a media platform – we bring together a panel of people working to create change. What motivates them and is the risk of speaking up worth it? On the panel: actress, author & child protection advocate Madeleine West, Parliamentary Intelligence Committee Chair Peter Khalil, QLD Liberal Senator Paul Scarr, GetUp CEO Larissa Baldwin-Roberts and broadcaster Tom Elliott.