Although I have not read the Chambers book, I certainly have paid a lot of attention to this period of history and bristle whenever I hear people on NPR deploring the "dark days of McCarthyism." And I hear this on almost every day that I listen to NPR. It is the world turned upside down.
People who think that either academe or the MSM delivers anything remotely like a straight-down-the-center view of American history have no clue.
There is a simple but effective cure for this. I took it 12 years ago.