The World Today is a comprehensive current affairs program which backgrounds, analyses, interprets and encourages debate on events and issues of interest and importance to all Australians.

Northern Territory health officials say a third of the people with diphtheria there have been hospitalised as the outbreak continues to spread.

The Federal Government's tax overhaul continues to raise concerns with public anger spanning from business groups to mum and dad investors.

Small business owners say they're reassessing their financial plans as the potential impacts of the Federal Government's tax overhaul sink in.

Fewer than half the properties up for auction in Sydney this past weekend sold, in what analysts say is a further softening of the housing market.

The opposition leader has used his first Budget in Reply speech to outline a tougher stance on migration, and he's vowed to reverse Labor's investor tax changes and hand back tax "bracket creep" to workers if elected.

The Opposition prepares to hand down its budget reply, which will tie Australia's migrant intake to the number of new houses being built.

A long over due reform to a broken system or an attack on the wealthy? How taxpayers are feeling about last night's Federal Budget.

Treasurer Jim Chalmers says he's going to throw everything at housing in tonight's Budget, with an overhaul of tax settings likely to headline what he's calling ambitious, but responsible reform.

This year's Federal Budget is shaping up to deliver some of the biggest changes in decades.

Some of the returned families of ISIS fighters to appear before court after arriving in Australia last night.

Australian families of ISIS fighters who went to Syria are due to touch down in Australia later today.

Some of the women who went to Syria with ISIS fighters will be arrested and charged when they return late tomorrow.

The World Today examines the events and issues of interest and importance to all Australians.

Sheina Gutnick, the daughter of Bondi hero Reuven Morrison, who tried to take on the Bondi gunmen has fronted the first day of public hearings at the Royal Commission into Antisemitism.

The death of a five year old girl in Alice Springs and the arrest of a man in connection to her alleged murder sparks riots outside Alice Springs hospital.

What led to that day at Bondi Beach, were there failures and how can it be never be repeated.. the Royal Commission's interim report is handed down with 14 recommendations.

King Charles addresses a joint session of the US Congress, pushing the case for global cooperation amidst strained relations thanks to the Iran war.

King Charles arrives at the White House to restore warmth between UK and US.

Donald Trump uses a security breach, in which a secret service agent was injured, to argue for his grand $400 million White House ballroom, but who's footing the bill of the controversial project?

After talks at ambassador-level at the White House Israel and Lebanon have agreed to extend their current ceasefire by three weeks. The Iranian-backed Hezbollah group was not party to the talks.

Much loved ABC broadcaster James Valentine has died at 64 after a battle with cancer.

Major healthcare policy changes announced today to save billions in spending on the National Disability Insurance Scheme.

A key Iranian negotiator says the country will not accept peace talks in Pakistan with the ceasefire drawing to a close with no other agreements in place.

The US Navy opens fire on an Iranian cargo ship, with renewed talks in Pakistan to be held before Wednesday's end to the current US-Iran ceasefire.

Will a ceasefire between Israel and Lebanon take us one step closer to a wider peace deal between the US and Iran?

Australia's fragile fuel supply is under further threat after the country's largest operating oil refinery burst into flames overnight.

The US President Donald Trump says negotiations with Iran could resume as early as this week as the fuel crunch continues to hurt key industries in Australia.

The stand-off in the Strait of Hormuz deepens with a United States blockade of Iranian ports now underway.

Donald Trump orders a blockade of the Strait of Hormuz as Iran says the two sides were "inches away" from reaching a peace agreement in Pakistan.

The Israelis to hold talks with Lebanon, the US to holds talk with Iran - in all this talking, what does it all mean for peace in the Middle East? A former adviser to six US Secretaries of State and middle east negotiator weighs in.

The death toll in Lebanon rises after Israeli strikes, threatening to undermine a fragile ceasefire in the war in Iran.

The US and Iran strike a ceasefire deal, hours after the US President threatened that "a whole civilisation will die tonight" if the ultimatum expired.

Australia's most decorated soldier, Ben Roberts-Smith, arrested on war crime allegations.

Iran bites back after US President Donald Trump's expletive-laden social media post amping up the pressure over the Strait of Hormuz.

The war isn't over yet - the US President touts 'swift, overwhelming' victories but maintains the war will continue.

New tax relief and financial support for small businesses suffering in the fuel crisis.

US President Donald Trump has threatened to blow up Iran's energy infrastructure if negotiations to end the war are not successful.

Alleged cop murderer Dezi Freeman is dead after seven months on the run.

Donald Trump has extended his deadline for Iran to open the Strait of Hormuz to April 6, saying he will hold off on bombing Iran's energy plants and that talks are going "very well".

The US President backs down from his ultimatum, postponing military strikes on Iranian power plants.

Are you taking the bus or train instead, maybe working from home? Fuel worries are already changing our daily habits.

One of the most powerful storms to hit Queensland in more than 100 years, Tropical Cyclone Narelle has crossed the Queensland coast as a Category 4 system lashing communities across Cape York Peninsula with deadly winds of up to 270 kilometres an hour.