Good morning. Thomas Morgan here with today's AM newsletter.

The downturn hitting Australia's property market shows no signs of abating, and the contagion is spreading beyond our two biggest cities.

But first, Four Corners takes a look at how child labour continues to play a role in the billion-dollar chocolate industry. Plus, the startling question that highlights the problems faced by people living in remote communities, and Iranians tell us about what life is like under the rule of the Islamic Republic.

What's the story? Part two of Four Corners' investigation into Australia's food industry is looking at the "dirty secret" at the heart of the chocolate industry. Despite repeated commitments to change and plenty of marketing about "sustainable" sourcing, concerns about child labour and poverty-stricken growers continue to dog the multi-billion-dollar global chocolate industry.

What has been uncovered? Four Corners travelled deep into Ghana's remote cocoa-growing regions, finding boys as young as 10 working for just 37 cents an hour. Videos filmed by an insider reveal child labour continues to be a fact of life in Ghana, one of the world's biggest cocoa producers.

What has been promised? For decades, major chocolate manufacturers have vowed to remove child labour from their supply chains. But deadlines to achieve this have come and gone, and then been watered down, and it remains the industry's "dirty, rotten little secret".

So how much would change cost? A block of Cadbury Dairy Milk chocolate costs $8 at the supermarket, but farmers see just 72 cents of that. Those who've spent years investigating West Africa's cocoa industry say multi-billion-dollar food companies could easily afford to pay their suppliers more, but that it will be up to consumers to drive change.

Garma Festival: While sitting in a community centre in Arnhem Land last week, a young boy casually asked political reporter Dana Morse a question that no child should. It highlights the tough lives many people in remote Indigenous communities experience and that most Australians do not really understand.

Korean barbecue: It's a culinary favourite for many, but a different kind of fire has been raging through the South Korean stock market over the past week. And it's threatening to upset the tech boom across the globe, writes chief business correspondent Ian Verrender.

Second attempt: A former ASIO agent has made a fresh bid to enter Australia to give testimony to the Bondi royal commission after his first visa application was rejected. Correspondent Tom Lowrey can also reveal NSW Police have contacted the former agent, known as Marcus, as they continue to investigation last December's attack.

Slump deepens: There's good news for first home buyers but bad news for those already on the property ladder and hoping to sell. The slide in house values has continued, with them down 0.7 per cent nationally in July, and the downturn is no longer confined to Sydney and Melbourne.

Medal momentum: Australia has topped the tally in Glasgow on the last day of the Commonwealth Games. Among those grinning is Meg Harris, who won six golds over the competition, while Tassie cyclist Georgia Baker will lead Team Australia into the closing ceremony.

Europe fires: Two people are dead after a mid-air collision between firefighting helicopters battling blazes near Athens. The continent's scorching summer continues, with Greece now bearing the brunt of out-of-control fires.

Leila, whose name has been changed by the ABC to protect her identity, is among the people inside Iran who is critical of the regime and its "atmosphere of security and surveillance".

She gives us an inside account of what life is like in the Islamic Republic, describing a country where people are "confronted with checkpoints" while just going about their daily lives

Being asked to perform higher duties can be a great opportunity to demonstrate your abilities in the workplace, but it can be challenging, even for the best of employees.

So what is a reasonable request and when can workers start to feel the strain of being asked to do too much? ABC Lifestyle breaks down what you need to keep in mind when being offered to step up.

Thanks for reading. We'll be back tomorrow morning with more.

Thomas and the ABC News Digital team.

Australia's housing downturn is spreading across the country, with the latest property price data showing previously resilient markets that had recently set record-high prices are now experiencing a decline in values.

Balance is a fundamental principle of everyday life on the Korean peninsula, but the worst stock market crash in the nation's history threatens the livelihood of millions.