Congress to look at credit card "swipe fees"

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WASHINGTON -- Congress is turning its attention to hidden credit-card fees that cost American shoppers an estimated $48 billion each year.

Technically, the term "swipe fee," means the costs of using -- or swiping -- your credit card. It's also called and interchange fee and is averages a full 2 percent of the purchase price.

While that fee used to cover processing costs, it's now a big source of profits for banks that issue credit cards.