Submitted by reuters8361 in business
U.S. health insurer Cigna <a href="https://www.reuters.com/markets/companies/CI.N" target="_blank">(CI.N)</a> is in talks to merge with peer Humana <a href="https://www.reuters.com/markets/companies/HUM.N" target="_blank">(HUM.N)</a>, a source familiar with t…