(December 4, 2015, 10:54 AM EST) -- ST. LOUIS — A disability insurer was not entitled to rescind its policy because the insurer did not prove that it was harmed by the insured’s failure to cancel another disability policy, the majority of the Eighth Circuit U.S. Court of Appeals said Dec. 1 (The Northwestern Mutual Life Insurance Co. v. Douglas G. Weiher, No. 14-3098, 8th Cir.; 2015 U.S. App. LEXIS 20793)....