Brian Martin is professor of social sciences at the University of Wollongong, Australia. He is the author of 14 books and hundreds of articles on nonviolence, whistleblowing, scientific controversies, information issues, democracy and other topics. He is vice president of Whistleblowers Australia and runs a large website on suppression of dissent. Majken Jul Sørensen is a PhD candidate at the University of Wollongong where she has just submitted her thesis "Humorous Political Stunts: Nonviolent Public Challenges to Power" about humour and political activism.