Bloomberg: TransCanada Corp., (TRP) facing opposition to its Keystone XL pipeline in the midwestern U.S., is encountering challenges at home from environmental groups and provincial lawmakers over a proposed C$12 billion ($11.6 billion) line to ship oil to the Atlantic Coast. The countrys second-biggest pipeline operator plans to move as much as 1.1 million barrels a day from the oil sands in Alberta to New Brunswick by 2018. Environmental groups and native leaders may push to block the pipeline, emboldened...