For example, arguing that the belief that CPUSA was little more than a projection of Soviet policy, especially espionage, was false and "is an extremist position which had been largely debunked" the author (below) refers to the professional anti-Communists who are trying to revive the Cold War anti-Communist suspicion using their Soviet archives research.
Just thought you might want to know what your fellow researchers are going through from your side.
Reference Center for Marxist Studies, http://www.libr.org/rcms/interview.html
There is no doubt that "professional" federal informants cause problems, however. IMO the worst example is what happened to the Weaver family and we taxpayers paid millions as a result. The Weaver family paid with the lives of the mother and a son. The U.S. Marshalls paid with the loss of an agent and of course his family paid also.
BTW, during the Congressional hearings on Ruby Ridge informants identified other informants as members of so-called white supremacist groups. Informants virtually outnumbered real members.