It's been an historic day for News Corp Australia and Nine mastheads this morning. All front pages in print and on line showed blacked-out text beside red stamps marked "secret". Rival news organisations have coordinated the black-out as they push for legislative change to protect press freedom and force the government to increase transparency. It's been triggered by raids on the ABC's headquarters and the home of a journalist, after the publication of stories based on leaked classified information. Denis Muller is a senior research fellow in the Centre for Advancing Journalism at the University of Melbourne.
Photo: ABC News Matthew Doran