

The normal background investigations of government employees in sensitive positions would have done just fine to protect the government from internal subversion, yet it was in the first years of the 1950s that the most virulent anti-communism flourished.

By 1950, Schrecker concludes, this was pretty much over. In that book, it becomes clear that many had indeed spied for the USSR, especially during the 1930s and in WWII. In her preface to the paperback edition, Schrecker takes note of the recent publication of The Haunted Wood by Allen Weinstein and Alexander Vassiliev, a book that took advantage of KGB and FBI files that have become available since the end of the Cold War to examine the issue of Americans spying for the Soviet Union.
