On this episode of dialogue we discuss crowdsourcing and the role it plays in disaster relief around the world with John Crowley, a research fellow at the Harvard Humanitarian Initiative and public policy scholar with the Wilson Center Science and Technology Innovation Program. We are also joined by A. Ross Johnson, a research fellow with the Hoover Institution and also a senior scholar with the Wilson Center's History and Public Policy Program, for a brief look at past and present efforts to communicate with unfree societies.