Australia's national leaders have joined the sombre memorial for victims of the Bourke St rampage, with Prime Minister Malcolm Turnbull declaring all Australians stood in solidarity with mourners.

Doctors believe the Turnbull government could be contemplating another increase in the Medicare levy.

Former prime minister Kevin Rudd says Donald Trump should be given a chance to calm his temperament and "grow into the job" once he is officially inaugurated as US President on Saturday.

"We're talking about a trust crisis that is causing a systemic meltdown."

• ANALYSIS

In the uncertain and unpredictable new age of President Trump, Australian policymakers and diplomats will have to work harder than ever before to maintain the US alliance.

Labor supports the review but said it should not be used as an excuse to cut costs.

Passengers would be whisked through immigration and customs without stopping or encountering humans under a radical overhaul due to start this year.

"We will spend what we need to spend to get this job done," former prime minister Tony Abbott declared in March 2014, shortly after the multi-country effort to find recently downed Malaysia Airlines flight MH370.

James Ashby is the name on everyone's lips – as long as those lips aren't identified.

Immigration Minister also backs the wearing of Islamic dress in public.

"I have taken out insurance just to not encourage anymore fights. I have amended my signature!"

• EXCLUSIVE

The multibillion Melbourne Metro rail project will boost the Australian economy the nation's top infrastructure advisers have declared, placing pressure on the Turnbull government to boost funding to Victorian major projects.

Peter Stephenson has become the first member of the scandal-plagued state council to bow to pressure and stand aside.

'What we are doing is wrong,' says insider.

The United Nations has expressed "grave concern" over the treatment of two asylum seekers who say they were savagely beaten by Papua New Guinea police and immigration officials on Manus Island before being arrested on New Year's Eve.

"Never said we were invited, just that we had 'invitations' and 'were gifted tickets'," Malcolm Roberts said. "'Received' an invite and 'invited' are very different things."

Transport Minister Darren Chester says the underwater search for missing Malaysia Airlines flight MH370 could be re-established but only if compelling new information came to light that pinpointed the location of the aircraft.

Police officers from the NSW fraud squad have attended the Sydney headquarters of the RSL as the leadership crisis at the venerated organisation descended to a new low, with RSL chief executive Glenn Kolomeitz saying he did not know whether he still had a job.

The last time Greg Hunt saw his mother before she died, she was in a mental health institution.

One Nation senator Brian Burston has labelled Centrelink's contentious debt-recovery system "malicious and bordering on the criminal", adding Pauline Hanson's party to the chorus of concern surrounding the automated clawback.

Centrelink accused of monstering its workers with threats in a bid to keep its secrets.

Turnbull government frontbencher Greg Hunt will take on the key cabinet portfolio of health in a limited reshuffle announced by Prime Minister Malcolm Turnbull on Wednesday.

A disillusioned Australian public believes the system is rigged against ordinary people and wants a strong leader to wrest power back from the elites, a survey has found.

"The decision to suspend the underwater search has not been taken lightly nor without sadness."

Former One Nation senator Rod Culleton's woes have shown no sign of abating, with the Queensland Police Service confirming it was still dealing with allegations he attempted to pervert the course of justice and threatened a Cairns magistrate.

After poaching one of his state MPs in her bid for Queensland domination, Pauline Hanson has some advice for Malcolm Turnbull on how to fix his government – bring Tony Abbott back to the cabinet.

Government looking to claw back more than $2 billion from Australia's parents, pensioners and disabled.

Senior Australian politicians have been caught up in a massive global data breach affecting Yahoo internet services, with experts warning the stolen information could be used to blackmail victims.

Billions of taxpayer dollars were handed to the private contractors running Australia's offshore detention centres without adequate authorisation or value-for-money assessments, the Commonwealth auditor has found.