Bloomberg: Rejecting TransCanada Corp. (TRP)s $5.4 billion Keystone XL pipeline due to carbon emissions in the oil sands would set a precedent for all U.S. infrastructure projects, Chief Executive Officer Russ Girling said. It would be harder to build car plants and T-shirt factories, as well as other cross-border pipelines, if President Barack Obama makes a decision on the proposed 830,000-barrel-a-day line based primarily on emissions from oil-sands development, Girling said yesterday in an interview at...