But the evidence that Anderson, Gentile, and Buckley provide has weakened that defense.

Chris Anderson Thank you so much, Prime Minister, that was both fascinating and quite inspiring.

CA Well, Steve, I would love every news media owner to hear that talk at some point in the next year. I think it's really important. Thank you so much.

In Violent Video Game Effects on Children and Adults, Craig Anderson, Douglas Gentile, and Katherine Buckley, of the Department of Psychology at Iowa State University, draw these studies together to argue that violent video games increase aggressive behavior.

While living and working as a marine biologist in Maldives, Charles Anderson noticed sudden explosions of dragonflies at certain times of year. He explains how he carefully tracked the path of a plain, little dragonfly called the globe skimmer, only to discover that it had the longest migratory journey of any insect in the world.

Chris Anderson I loved that talk. I think a lot of people here in the room would say that that expansion of that you were talking about, that Peter Singer talks about, is also driven by, just by technology, by greater visibility of the other, and the sense that the world is therefore getting smaller. I mean, is that also a grain of truth?