From DeSmogBlog:
Documents obtained by DeSmogBlog reveal an alarming rate of corrosion to parts of TransCanada’s Keystone 1 pipeline. A mandatory inspection test revealed a section of the pipeline’s wall had corroded 95%, leaving it paper-thin in one area (one-third the thickness of a dime) and dangerously thin in three other places, leading TransCanada to immediately shut it down. The cause of the corrosion is being kept from the public by federal regulators and TransCanada.
“It is highly unusual for a pipeline not yet two years old to experience such deep corrosion issues,” Evan Vokes, a former TransCanada pipeline engineer-turned-whistleblower, told DeSmogBlog. “Something very severe happened that the public needs to know about.”