Social movements are involved in struggles over meaning as they attempt to influence public policy. An essential task in these struggles is to frame social problems and injustices in a way that convinces a wide and diverse audience of the necessity for and utility of collective attempts to redress them. Movement frames typically embody two essential components: the diagnostic element, or the definition of the problem and its source; and the prognostic element, the identification of an appropriate strategy for redressing the problem (Snow and Benford 1988). Movements usually lack the political and/or material resources necessary for routine access to political decision-makers and therefore must rely primarily on “outsider” strategies to draw the attention of publics and policymakers to the problems they wish to have resolved. Lipsky (1968) identified a fundamental logic of movement strategy as a conscious attempt to draw third parties into the conflict in order to raise the stakes in the conflict and bring favorable pressure to bear on the policy process. While movements' ultimate targets are typically policymakers, movements must mobilize people and resources within the wider society in order to influence this authoritative elite. These third parties include both the mass public and the reference elites, the people with whom the authoritative elite interacts and consults. A major tool in this process is the mass media, which can reach a much larger audience than social movement actors can reach directly.