An appeals court in Ottawa has affirmed the constitutionality of the way the Canadian government allows Canadian financial institutions to share the information of their U.S. account-holders with the authorities in the U.S., ending the latest round of a years-long battle by two U.S. born Canadian women who are known informally to their supporters as "Gwen and Kazia." 

A Federal Court in Ottawa on Monday dismissed the latest legal effort by two dual Canadian/U.S. citizens to block Canada’s implementation of the U.S.’s Foreign Account Tax Compliance Act, dealing a blow to thousands of Americans with dual citizenship and consequent tax obligations not just in Canada but, supporters of the plaintiffs argue, around the world.

A trial in which a group of Canadian/American citizens are seeking to challenge the constitutionality of the Canadian government's enforcement of America’s FATCA legislation is set to begin on Monday in a federal courthouse in Vancouver, British Columbia, and will be broadcast live via a "webcast", according to sources involved in the lawsuit.