(November 7, 2017, 2:46 PM EST) -- WASHINGTON, D.C. — Humana Inc. on Nov. 2 became the latest insurer to sue the government over the Patient Protection and Affordable Care Act (ACA) risk-corridor program, claiming that the government owes it $611 million under the program (Humana Inc. v. The United States of America, No. 17-1664, U.S. Fed. Clms.)....