And its not just the media. Example from baseball is velocity - until the 1970s it was never used and guys just threw fast or had good speed. But then all of a sudden they had good velocity - which is actually wrong, because velocity in physics is a vector, meaning it implies speed and direction.
When it comes to language, at least for my perception of American English, the narrative of the '70s saw a paradigm shift with Watergate. Watergate--and the succession of political scandal "gates" ever since--saw a heightening of political verbal obfuscation that Orwell foretold.
Many words and phrases had seldom, if ever, been heard before that "point in time" when Watergate began to achieve notoriety (and it seems to have been around than that "notoriety" and fame became colloquially interchangeable.) Who had used, or heard, of an expletive deleted, or executive privilege, or non-denial denials, or cancers in the little "c" sense, or enemies lists, or stonewalling, or inoperative? In just two years, all these words and phrases became prominent additions to the language.
The close of the Watergate era occurred when Gerald Ford was sworn into office and announced "our long national nightmare is over." But from that time on, every political scandal has lived in a gated community.
A Princeton PhD, was a U.S. diplomat for over 20 years, mostly in Central/Eastern Europe, and was promoted to the Senior Foreign Service in 1997. After leaving the State Department in order to express opposition to the planned invasion of Iraq, he taught courses at Georgetown University pertaining to the tension between propaganda and public diplomacy. For many years he shared ideas on the theme "E Pluribus Unum? What Keeps the United States United" with Eurasian/European delegates participating in the "Open World" program.
Brown’s articles have appeared in numerous publications. A recent piece is “Janus-Faced Public Diplomacy: Creel and Lippmann During the Great War” (published in Nontraditional U.S. Public Diplomacy: Past, Present, and Future; now online).
He is the author (with S. Grant) of The Russian Empire and the USSR: A Guide to Manuscripts and Archival Materials in the United States (also online). In the past century, he served as an editor/translator of a joint U.S.-Soviet publication, The Establishment of Russian-American Relations, 1765-1815.