The front page of every newspaper in Australia was blacked out on Monday in a coordinated move to support press freedom.
The campaign, by Australia’s Right to Know Coalition, is trying to "to highlight the constraints on media organisations under strict national security legislation".
Advertisements have also been rolled out across the country's television networks urged the public to ask of the government: "What are they covering up?"
Raids on the Australian Broadcasting Corporation (ABC) and the home of a News Corp Australia journalist had sparked a huge public outrage.

US missiles hit Iran as path towards de-escalation uncertain
US military says it's completed 13th consecutive night of strikes on Iran
Indian government seeks time on minister resignation demand
Israel launches military operation after deadly clash near Palestinian village
Irish police intercept car with 'significant' bomb near Northern Ireland border
