Grist: Late on a Friday afternoon in early March, the State Department released a 2,000-page draft report downplaying the environmental risks of the northern portion of the controversial Keystone XL pipeline, which would ferry oil from Canada`s tar sands to refineries in Texas, passing through Montana, South Dakota, Nebraska, Kansas, and Oklahoma. But when it released the report, the State Dept. hid an important fact from the public: Experts who helped draft the report had previously worked for TransCanada,...