Two new communication modes are emerging in western culture today–an elusive silent muzzling induced by political correctness and fear, and an accompanying rage when repressed people ultimately explode. This subtle silencing occurs now in "polite" public conversations. I feel the gagging more and in my own life, except among my closest friends and family. And the raging–We see it erupting at political rallies, in Target stores, on freeways, on reality shows, and in face to face confrontations on media. Civil discussions are dying. Behold the silencing of the lambs.           It's usually brutal authoritarian governments who terrorize their citizens into silence. Talk to older generations who grew up…