(June 12, 2018, 2:46 PM EDT) -- WASHINGTON, D.C. — The 10th Circuit U.S. Court of Appeals heard oral arguments on May 15 in a case in which a hotel company contends that an indoor air exclusion provision in an insurance policy is ambiguous when it is applied to the third-party carbon monoxide poisoning claims for which it seeks coverage (Siloam Springs Hotel LLC v. Century Surety Company, No. 17-6208, 10th Cir.)....