The tallest building in the United States now bears the name of a Bermuda-domiciled company after Chicago's Sears Tower was renamed the Willis Tower. In getting its name on the building Willis Group Holdings Ltd., with its largest operations in London and New York, is putting one over its insurance broker rival Aon Corp., whose headquarters is about a mile away. Willis's naming rights for the iconic skyscraper will run for 15 years, as part of its lease...more.