Most members of the public have little opportunity to express political opinions via a mass medium. Political automobile bumper stickers provide such a possibility and can constitute a revival of Habermas's notion of the public sphere. This article examines how such bumper stickers function in the case of Israel, where political bumper stickers have become a ubiquitous medium of communication, expressing complex national-ideological messages that reflect individual opinions on a mass scale. Four elements have combined to bring about the development of this openly accessible political medium for the expression of public opinion: Israel's volatile political situation, a cultural predisposition to verbal expression on political topics, dramatic changes in the communication climate, and the particular status of cars and attitudes toward driving in the country. This mobile rhetoric has been used to set the public sphere in motion, reflecting five factors that account for the dynamism of the medium: the physical circulation of the messages on cars; the dialogic interaction and renegotiation of previously established ideological premises; the reflection, introduction, and maintenance of topics on the public agenda; the taking of power by the people; and the performative act of public expression.
