While the central premise that replacing SSNs with something like "chip and PIN" is good, note that the EU moved to "chip and PIN" decades ago, while the US mo

While the central premise that replacing SSNs with something like "chip and PIN" is good, note that the EU moved to "chip and PIN" decades ago, while the US moved to "chip and signature" recently, and that move was in progress well before the leaks of millions of CC numbers.