Visa, MasterCard will do just fine despite being under attack, Barron’s says

A trifecta of threats-from Congress, cryptocurrencies, and financial-technology companies-seem poised to drain Visa (V) and MasterCard’s (MA) moat, Joe Light writes in this week’s edition of Barron’s. But the impending doom of card networks is a story that has been told for decades, and their position remains strong, the author says.