The company also faced scrutiny for advising TransCanada pipeline company to run a "perpetual campaign" against opponents of a pipeline project across eastern Canada.
The FBI files appear to suggest the Houston branch of the investigation was opened in early 2013, several months after a high-level strategy meeting between the agency and TransCanada, the company building the pipeline.
In another incident, the license plate belonging to a Silver Dodge was dutifully entered into the FBI's database, after a "source" spotted the driver and another man photographing a building associated with TransCanada.
At one point, the FBI's Houston office said it would share with TransCanada "any pertinent intelligence regarding any threats" to the company in advance of a forthcoming protest.
TransCanada later announced it had dropped Edelman.
A decision is expected soon.Alex Pourbaix of TransCanada, the firm behind the Keystone pipeline, insists that the project will be good for both countries.
And by defusing the concerns of conservationists in Nebraska, TransCanada is shrewdly undermining the coalition against the pipeline.The irony of all this is that the pipeline is not nearly as important as either its defenders or critics make it out to be.
The state's Republican governor, Dave Heineman, has written to Hillary Clinton, the secretary of state, asking her to refuse the necessary permit unless TransCanada modifies the pipeline's route.
Friends of the Earth considers the fact that the games' national partner, Petro Canada, its official natural gas supplier, TransCanada, and some of its other sponsors have investments in Canada's tar sands, a bane of environmental activists, to be "the dirty truth behind the Olympics".On balance, though, the Vancouver Olympics probably deserves its tarnished bronze.
After all, TransCanada, the company behind the pipeline, says it will create 20,000 jobs (albeit temporary ones in construction for the most part) and dramatically improve America's energy security.
When TransCanada screened an ad in favour of the pipeline during a match of the beloved local American football team, the University of Nebraska's Cornhuskers, the crowd booed.
