In the late 1990s, AI witnessed an increasing use of the term 'argumentation' within its bounds: in natural language processing, in user interface design, in logic programming and nonmonotonic reasoning, in Al's interface with the legal community, and in the newly emerging field of multi-agent systems. It seemed to me that many of these uses of argumentation were inspired by (of- ten inspired) guesswork, and that a great majority of the AI community were unaware that there was a maturing, rich field of research in Argumentation Theory (and Critical Thinking and Informal Logic) that had been...

This revised, expanded edition chronicles the development and career of the world's predominant military airlifter, from its origins in the depths of the Cold War through the present day. It includes new information and pictures on current variants, along with updated appendices with present day units and active aircraft. Over 190photographs show the "Herk" in a varietyof roles and paint schemes: coverage includes gunships, electronicwarfare and reconniassance models, testbed and special use aircraft, andNavy models. Close-up detail photos of several variants will be ofinterest to scale...