The Natural Resources Defense Council says that last weekend’s leak of 42,000 gallons of oil into the Yellowstone River, along with more than 800,000 gallons spilled into the Kalamazoo River last year and a rash of pipeline leaks along the Keystone I pipeline, should convince the State Department to nix the Keystone XL pipeline. As we saw from the BP oil spill disaster in the Gulf, toxins in the oil can take a lethal toll on aquatic life of all kinds. Exposure to these toxins can also cause genetic damage, liver disease, cancer and harm to reproductive and immune systems