Economic benefits from trade, huh..........where do we find those, given that real median incomes for Canadians haven't budged in four decades of increased trade?  
 I suppose if the Federal Government wanted to amend the Bank of Canada Act  to require the bank to provide immediate,  unlimited funding for oil spill cleanups, as well as their usual money supply role, the KM pipeline might have a chance, albeit a slim one.  It's easier than sending soldiers.