Construction of Sydney's second international airport officially begins today, with the Prime Minister calling it the "biggest game changer" for the city since the Harbour Bridge.

Superannuation, stored value travel cards and cryptocurrencies are increasingly being used for money laundering by sophisticated criminals, Australia's financial intelligence agency warns.

One of South Australia's biggest takeaway coffee retailers will again allow customers to bring in reusable cups and mugs, reversing a controversial ban brought in for safety reasons.

ABC managing director Michelle Guthrie is "devastated" after being sacked just two-and-a-half years into her five-year term, with chairman Justin Milne saying "her leadership style was not the style that we needed going forward".

As the nation's population ages, many people are looking to at-home care and even living with housemates.