(July 18, 2017, 11:56 AM EDT) -- WASHINGTON, D.C. — The purpose and structure of the Patient Protection and Affordable Care Act (ACA) risk-corridor program show that Congress intended the program to mitigate insurers’ risk, not eliminate their risk while putting taxpayers on the hook for potentially uncapped liability, the United States told the Federal Circuit U.S. Court of Appeals on July 10 (Moda Health Plan Inc. v. The United States of America, No. 2017-1994, Fed. Cir.)....