Swings of American public opinion with respect to the Soviet Union and its actions are often attributed to the individual interested American's lack of enduring convictions.
Rosenau, James N. and Holsti, Ole R.
"Public Opinion and Soviet Foreign Policy: Competing Belief Systems in the Policy-Making Process,"
Naval War College Review: Vol. 32
, Article 3.
Available at: http://digital-commons.usnwc.edu/nwc-review/vol32/iss5/3