EcoWatch: When I see raw tar sands coursing through people`s yards and across wetlands, it makes me sick. My thoughts are with the people in Arkansas who are dealing with this river of toxic mess. And my thoughts instantly move ahead to what could happen to farms, families, homes and wild areas across our country if we support expansion of tar sands with permits for pipelines such as Keystone XL. The answer seems clear, especially when we look at the graphic video footage from Arkansas: tar sands expansion...