"If slaughterhouses had glass walls, everyone would be vegetarian."

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'Glass Walls'
Music legend Paul McCartney delivers a powerful narration of this must-see video.
Sources:
http://www.meat.org/
http://www.peta.org/tv/videos/celebrities-vegetarianism/86975251001.aspx#
http://action.peta.org.uk/ea-campaign/clientcampaign.do?ea.client.id=5&ea.campaign.id=5133