(November 12, 2018, 12:22 PM EST) -- BROOKLYN, N.Y. — The U.S. Department of Justice sued UBS AG and certain of its affiliates in New York federal court on Nov. 9, alleging that the defendants misrepresented the investment quality of more than $41 billion in residential mortgage-backed securities (RMBS) it sold to investors (United States v. UBS Securities LLC, et al., No. 18-6369, E.D. N.Y.)....