I don't necessarily think that is technically feasible. At least in the US, they have to be PCI compliant, and I think of that is they cannot store a credit car

I don't necessarily think that is technically feasible. At least in the US, they have to be PCI compliant, and I think of that is they cannot store a credit card number. In addition, Chip and pin works differently than a credit card number, as the purchase is tokenized versus to an account number, making cross purchase correlation more difficult.