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Thanks. I found an excerpt on Irving Howe, but didn't realize it was part of a larger work:
http://www.writing.upenn.edu/~afilreis/50s/wald-on-howe.html
It's from a site The Literature and Culture of the American 1950s:
http://www.writing.upenn.edu/~afilreis/50s/home.html
Just scan down the long list of works and names involved in the anti-communist waves of the cold war. The sheer volumn gives people some idea of how much of this garbage filled the air.
CG