Mealey's (January 17, 2018, 9:42 AM EST) -- CHICAGO — The United States and Illinois on Jan. 10 declined to intervene in a complaint by a whistleblower that Pfizer Inc. and Hospira Inc. ignored quality problems with an infusion pump (United States of America, et al., ex rel. Michael Thornton v. Pfizer, Inc., et al., No. 16-7142, N.D. Ill.)....