Why Banks Should Care About Bitcoin

Look beyond the hype about the price of this digital currency. Because Bitcoin's not just a currency, it's also a payment system, and as such a budding challenger to PayPal, Western Union, Visa, MasterCard, and perhaps banks themselves. Whether the currency is a pot of gold or fool's gold is beside the point, argues Executive Editor Marc Hochstein. The real potential of this technology is as a set of pipes for transmitting value.