U.S. foreign policy: shield of the republic

Walter Lippmann (September 23, 1889 – December 14, 1974) was an American journalist. With a career spanning 60 years, he is famous for being among the first to introduce the concept of the Cold War, coining the term "stereotype" in the modern psychological meaning, as well as critiquing media and democracy in his newspaper column and several books, most notably his 1922 Public Opinion. Lippmann also played a notable role as research director of Woodrow Wilson's post–World War I board of inquiry. His views on the role of journalism in a democracy were contrasted with the contemporaneous writings of John Dewey in what has been retrospectively named the Lippmann–Dewey Debate. Lippmann won two Pulitzer Prizes, one for his syndicated newspaper column "Today and Tomorrow" and one for his 1961 interview of Nikita Khrushchev.