The census next Tuesday will be the first time the names and addresses of 24 million Australians will be kept and linked to other data for four years, a change that has sparked outrage among public interest groups. „The whole concept behind privacy is control of your personal information,“ said Kat Lane, vice chair of the Australian Privacy Foundation. „What we need to understand as a society is that it needs to be a choice whether you share your data with the world and whether you don‘t.“