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This chapter examines the role mass media plays in the maintenance of social control and policy formulation and implementation in the Trump political era. First, an historical survey of mass media theory is presented and used as an analytic lens through which to identify that mass media has long been recognized as a powerful tool of social control or disruption and in public policy formulation and implementation. Second, this chapter explores the challenges posed to society and policy when a president uses mass media to spread misinformation and disinformation. Third, this chapter identifies the divisive nature of US political attitudes in the Trump era and how social media contributes to cleavage. Fourth, this chapter explores efforts by foreign actors, particularly Russian, to spread discursive and thus social chaos through disinformation campaigns in the United States and other western democracies. This chapter concludes that mass media has been both a divisive and uniting force, although the rise of social media and its susceptibility to manipulation poses a danger to social cohesion and effective public policy formulation and implementation. These factors have contributed to civil divisiveness and lack of policy clarity.

This chapter defines what road safety advertising campaigns are and the objectives that they typically seek to achieve. The argument put forward in this chapter is that when theoretically informed in their design and sensitive to the array of potential personal, social, and cultural influences which may be at play, road safety advertising can contribute to both reinforcing and transforming contemporary traffic safety culture. This chapter offers guidance to researchers and practitioners in the field regarding relevant theory which may be applied to inform message design and evaluation.