The Birch Society exposes another conspiracy…
Agent Provocateurs (via google search)

There can be no doubt that among the “friends” we see at such events are scattered among them enemies to make our movement look bad and “extremist,” as well as others who never seem to understand how to sell themselves or their positions on the issues. The media will always seek these people out and it is these folks will represent the entire body of people in attendance and who are shown on the evening news. It will not matter if all other attendees are dressed professionally, the media will find that one person who fits the extremist label and focus on him.

For many years our movement has been the victim of individuals and organizations whose primary job it is to embarrass us. Often, it does not come from the Left, it comes from our own government in the form of “informants,” what the media calls government-hired agent provocateurs.