Let It Go: Era of Chip Cards Arrives.

The article discusses the transition in the U.S. from credit and debit cards with magnetic strips to more secure cards with embedded microchips. Data-security breaches at supermarket operator Supervalu Inc. and other retailers have prompted Bank of America Corp., J. P. Morgan Chase & Co., and other banks to begin issuing chip cards to new customers. Retailers including Wal-Mart Stores Inc. are installing the equipment needed to accept such cards.