Danny Hayes and Matt Guardino. Influence from Abroad: Foreign Voices, the Media, and U.S. Public Opinion. New York: Cambridge University Press. 2013. 197 pp. $27.99 (paper). View article: Danny Hayes and Matt Guardino. Influence from Abroad: Foreign Voices, the Media, and U.S. Public Opinion. New York: Cambridge University Press. 2013. 197 pp. $27.99 (paper).