Cigna Corp. And Anthem Inc. Offices As Insurers Face Off Against U.S. To Save $48 Billion Deal [Getty Images]

Signage is displayed on the exterior of an Anthem Inc. Blue Cross Blue Shield office building in Wallingford, Connecticut, U.S., on Tuesday, Nov. 22, 2016. Anthem Inc.'s proposed $48 billion merger with Cigna Corp. could give the insurer the power to raise prices for employers both in the 14 states where it does business, as well as across the country, according to a witness in the U.S. government's lawsuit to block the deal. Photographer: Michael Nagle/bloomberg

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