Hamburgs data regulator Johannes Caspar has ordered Facebook to allow users to take out accounts under pseudonyms. The order is based on a complaint by a user whod sought to prevent her private Facebook account from being used by people contacting her about business. Facebook said in a statement that it was disappointed that its name policy is being revisited even after it won disputes over the issue. Facebook has argued that the Irish regulator has jurisdiction over its compliance with EU privacy law, but Caspar said that if Facebook wants to play in Germany, it has to do so in accordance with the country’s laws.”]