(PR-inside.com) SAN FRANCISCO, CALIFORNIA -- (Marketwire) -- 01/13/11 -- TransCanada has kicked off another round of radio and cable TV ads in Washington, D.C., urging approval of the 1,900-mile Keystone XL pipeline through Montana, South Dakota, Nebraska, Kansas, Oklahoma and Texas to carry the world's dirtiest oil from the Alberta tar sands to U.S. refineries. But there are some things the ads don't say. Things like: - Tar sands oil is more acidic, corrosive and explosive and contains more toxic chemicals. It's more likely to spill and more likely to endanger public health when it does. - Pipeline overcapacity raises shipping costs ..
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