The first-ever thorough exploration and discussion of the rhetorical model of social invention [RSI] (initially conceived by rhetorical theorist William R. Brown) for today's students and scholars.

Fourth and final in a series of essays (see Brown, 1978, 1982, 1986) treating communication as driver of history, this piece argues for the symbolic constitution of need, showing also its systemic role in power relationships and in ideology with reference to American minority-majority communication. The essay (1) develops a communication-based rationale for "need" as an entry point for rhetorical intervention, with "need" viewed as being both subordinate and superordinate to "attention" and "power," (2) historically illustrates "need" as a dynamic for rhetorical intervention into communication between whites and African Americans, and (3) demonstrates via a case study specifically the strategies, tactics, and maneuvers of "need"-based rhetorical intervention into majority-minority communication. The essay concludes with a review of the implications of need mediation for power and ideological interventions and suggests research directions to students, scholars and practitioners of cultural change. Overall, the essay highlights the subsystem of need, which interacts interdependently with the subsystems of attention (Brown, 1982) and power (Brown, 1986) to form the Rhetoric of Social Intervention model (Brown, 1978). (Contains 1 figure and 13 notes.).

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