Incursions, diversions.

The article discusses the corporate inversion issue in the U.S. and the actions that the government should do to address it. It reflects on the decision of drug retailer Walgreen Co. not to move its headquarters to Bern, Switzerland due to litigation risk and its shareholders' interests. It argues the need for the government to implement a corporate tax reform in order to prevent companies from leaving the U.S. to take advantage of lower taxes abroad.