Durbin Amendment proponents, opponents hail, assail this week's announcement by Fed.
Saying that the debit card swipe fees set by the Federal Reserve were neither reasonable nor proportional, the National Retail Federation and other groups have sued the agency.
Retail groups say Fed has failed to regulate swipe fees under intent of Dodd-Frank.
With federal legislation on credit and debit card interchange appearing dead in the water this year,
One day after the Credit CARD Act went into effect, one trade group is concerned that swipe fees could total $48 billion for small businesses and their customers.