Left-wingers have a long history of committing political atrocities that have resulted in the deaths of thousands to millions; from the Reign of Terror all the way up to the Cambodian Genocide.
You'll never hear about that from the left-wing, globalist mass media; though. Instead, they use a handful of isolated incidents (many of which have a high possibility of being false flag attacks) to make the claim that ''all right-wingers are potential terrorists'' while at the same time pretending that left-wingers never commit violent acts themselves.
Before you hit me with the usual response that I'm a crazy, extreme right-wing conspiracy theorist who needs to take his meds; take a look at Hal Turner. He's proof that the feds do, in fact, set people up to play the role of their political opponents and act aggressively so they can justify making moves against them. They even encouraged him to use violent rhetoric.
http://en.wikipedia.org/wiki/Hal_Turner#FBI_Informant