The card is being tested at several international banks, including a bank in Korea. The card could be used in the U.S. and other parts of the world. The cost of the card, $12, is high, but the cost will go down over the next few years, experts say. The new card is designed to be used by banks, government agencies and individuals who need to be able to use the card to authenticate their transactions. The company says the card will be available in a variety of countries, including Korea.”]