How did the American society change in terms of economics, culture, technology, and society during the 1960s and 1970s?

How did the American society change in terms of economics, culture, technology, and society during the 1960s and 1970s?
Cambodian Incursion Address (1970) http://www.americanrhetoric.com/speeches/richardnixoncambodia.html
Barry Goldwater “Speech Accepting Republican Presidential Nomination” (1964) http://www.americanrhetoric.com/speeches/barrygoldwater1964rnc.htm
Malcolm X “The Ballot or the Bullet” (1964) http://www.edchange.org/multicultural/speeches/malcolm_x_ballot.html
Martin Luther King, “I Have a Dream” (1963) http://www.americanrhetoric.com/speeches/mlkihaveadream.htm