When are we, as a nation, going to have a frank discussion about drones and remote-controlled killing? One might think that such a dialogue could take place when thousands of people come together, once a year, at the gathering of the Association of Unmanned Vehicle Systems International (AUVSI). Wrong.

But AUVSI, the lobby group for the drone industry, brooked no dissent at its August 6-9 Las Vegas Convention. When I, as author of a new book Drone Warfare: Killing by Remote Control, tried to rent a room at the Convention Center to give a presentation on my book, AUVSI vetoed my request. When I tried to register as a journalist, I was told that I did not meet their criteria, but they refused to say what that criteria was.