No different that other recent major cross border pipelines, including Alliance (Veresen) built a while back.

Canadian engineers, materials and constructors in Canada, American in the US.

Anyways, it always comes down to money, and the private companies involved have known it all along.

By the way, it was Junior's rejection of Northern Gateway that cleared the way for Obama to initially deny the KXL permits, just days after Junior swept to victory.

No Northern Gateway meant that Canadian oil, Alberta oil, would remain a discount hostage to the US market. Obama could reject KXL risk free, look like a climate hero when in fact it was plain old fashioned economic self interest.

Junior did get a State Dinner for his stupidity however.