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Last year the NT's Department of Families hired a private architecture firm to compile a design brief for a new facility that would replace the now infamous Don Dale youth detention centre. Today, a Professor of Architecture told the royal commission into youth detention and child protection that the planning document for the new centre was one of the most poorly researched briefs she had ever seen.

Earlier this week former Reserve Bank board member, John Edwards, warned the official interest rate could rise to 3.5 per cent by 2019. Now several other senior economists say, at the very least, borrowers may be hit with as many as four interest rate increases over the next two years.

Business PM catches you up on the most important news in business and finance.

The Government's announced a new cyber warfare unit and beefed-up 'offensive capabilities', but bickering within the Coalition over defence policy continues. Former Prime Minister Tony Abbott's suggestion that a nuclear-powered submarine program should be considered is leading to a plea from colleagues to show more unity.

Senior Ministers have spent the day trying to hose down reports of an internal rift. Behind closed doors, some Liberals are pushing for Christopher Pyne to lose his position as Leader of the House. The Prime Minister has avoided answering questions on the matter, while former Prime Minister Tony Abbott says he understands why some of his colleagues are not happy.

A new cyber attack sweeping the globe could be worse than last month's WannaCry virus. Several multinational companies with Australian operations have been hit by ransomware. One IT security expert says it's likely we'll see more of the attacks and there's little the government can do.

The head of the US Navy in the Pacific has issued a warning to the region over what's happening in the Philippines city of Marawi. Islamic militants took control there last month with scores of residents, militants and soldiers killed in the battle since. To expand on the extent of that threat is Dr Steven Rood, a visiting fellow at ANU and a former professor of political science in the Philippines where he's lived for 35 years.

The ABC has obtained the charge sheet against alleged Bali nightclub bombing mastermind Hambali. The details are a chilling list of alleged plots for attacks throughout south east Asia and a testament to his relationship with Osama bin Laden. The Bali blasts killed 202 people, 88 of them Australian. Now almost 15 years later the US war prosecutor has brought forward the charges against Hambali, who's still being held in Guantanamo Bay.

A landmark report into allegations of corruption surrounding the bids for football's next two World Cups has been released by FIFA. The two-year-old report by US attorney Michael Garcia was posted online after German magazine Bild began reporting on a leaked copy, revealing a $2 million payment to the 10-year-old daughter of a FIFA official.

Melbourne's tight-knit medical community is reeling after the death of a surgeon allegedly king-hit in the foyer of a hospital. Patrick Pritzwald-Stegman was a gifted cardiothoracic surgeon, known for his generosity and kindness. The father of two died overnight after weeks on life support, he was 41.