MIT roboticist Rodney Brooks, Adaptive A.I. Inc. founder Peter Voss, Self-Aware Systems founder Steve Omohundro, Powerset CEO Barney Pell, and Google research director Peter Norvig discuss how they see AI developing in the years ahead, when a human-level AI might emerge, and how worried we should be about that whole killer-robot-goes-on-rampage scenario, in these interviews accompaning a cover story in The Futurist.