"Not because I have any sympathy for Iran’s government, I should hasten to say, or because I see any threat coming from this particular use of Twitter. It scares me because of how close it aligns with something I noted in my talk at Mobile Monday in Amsterdam earlier this month, an observation that happened almost by accident. In noting the potential power of social networking tools for organizing mass change, I thought out loud for a moment about what kinds of dangers might emerge. It struck me, as I spoke, that there is a terrible analogy that might be applicable: the use of radio as a way of coordinating bloody attacks on rival ethnic communities during the Rwandan genocide in the early 1990s. I asked, out loud, whether Twitter could ever be used to trigger a genocide. The audience was understandably stunned by the question, and after a few seconds someone shouted, “No!” I could only hope that the anonymous reply was right, but I don’t think he was." - Steven Perez from Bookmarklet