An anonymous reader writes: Global governments, the tech sector, and scholars are closely following a legal flap in which the US Justice Department claims that Microsoft must hand over e-mail stored in Dublin, Ireland. In essence, President Barack Obama's administration claims that any company with operations in the United States must comply with valid warrants for data, even if the content is stored overseas. It's a position Microsoft and companies like Apple say is wrong, arguing that the enforcement of US law stops at the border. A magistrate judge has already sided with the government's position, ruling in April that "the basic principle that an entity lawfully obligated to produce information must do so regardless of the location of that information." Microsoft appealed to a federal judge, and the case is set to be heard on July 31.