U.S. and North Korea: the last holdouts on EMV chips for cards
The link below is to a post by Brett King in FINExtra, a payments industry site. He points out that one of the few things uniting the U.S. and North Korea is that they are holdouts on a payment system adopted everywhere else, if not yet fully implemented.
The post is interesting in its discussion of the apparent belief of many U.S. card issuers that it would be possible to go straight from the present system to one that relies mainly on using mobile devices to pay for everything. An unlikely event, I'd say...