US intervenes in Hungary in 1956

Britain nationalized a lot of its own economy in the aftermath of the war and I don't recall the U.S. complaining at all.

http://en.wikipedia.org/wiki/Social_democracy

Based on the list, one could argue Britain was a social democracy between Chuchill and Thatcher.
Social democracy =!= socialism. The take over of failing private enterprise by the state is in no way comparable to a from below revolution that establishes worker's control of the means of production.
 
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