Calgary Herald

 TransCanada's new pipeline project worries U.S. agency

The U.S. Environmental Protection Agency has expressed new fears about the safety of Calgary-based TransCanada Corp.'s proposed Keystone XL oilsands pipeline, warning decision makers in the Obama administration to "carefully consider" whether the project's proposed route through ecologically sensitive areas in the U.S. Great Plains is appropriate.

 In a letter to the State Department, the EPA said two recent leaks that shut down the existing Keystone pipeline highlight the need to require the Canadian company to take more rigorous steps to limit the threat of a major spill on the new line.