Abstract
It is unfortunate that so much turns on the practices of argument construction and critique in intelligence analysis, for example, because these practices are fraught with difficulty. However, the recently developed technique of argument mapping helps reasoners conduct these practices more thoroughly and insightfully, as can be shown in an extended illustration concerning Iraqi nuclear activities circa 2002. Argument mapping offers other benefits, as well. Its ultimate value, though, will depend on how its advantages compare to those of competitor reasoning methodologies.