The security environment for credit cards in the US has lagged behind Europe for years. We willingly hand our plastic to our server in a restaurant whereas in Europe the transaction is done at the table using a portable wireless reader. Our cards use magnetic stripe technology that's decades old; their cards have a chip. But that's changing.
- It is a MasterCard, not a Discover card. I have to assume that this is because MasterCard cut a better deal with Sam's, not because Sam's has any interest whatsoever in providing me better service.
- It is a smart card. I had already noticed that Walmart and Sam's have installed readers for smart cards.