On September 11 2001, thousands of dead were unaccounted for in the smouldering rubble of the World Trade Centre. Among them, was the remains of Mohamed Atta, whose last murderous act tipped the world into a confrontation between Islam and the West.
Milk, as natural and wholesome as motherhood, packed with proteins, vitamins and minerals, great for you and the kids. That's the image but just how beneficial is it?
Each week more than a thousand Australians are delivered the cruel diagnosis: they have dementia - incurable, untreatable, terminal. This episode of Four Corners chronicles the undeniable sadness of the descent into dementia.
A Deathly Silence attempts to break the taboo of silence that surrounds the act of suicide, its illusory appeal to the vulnerable, and its cruel toll on the living.
Australia, along with the rest of the world, is at risk of a virulent economic virus thanks to financial globalisation where everything is interconnected through a sophisticated form of pass the parcel.
The old mantra, all girls have XX chromosomes and all boys have XY, is no longer reliable. The proof lives in as many as 40,000 Australians whose chromosomes don't match the standard.
Matthew Carney travels to Pakistan to investigate the Taliban's expanding reign of terror.
While the 2005 International Whaling Commission meeting fended off Japan's push for a return to commercial whaling, Japan threatened to press ahead with plans to dramatically increase the number and species of whales it kills for 'scientific research'.
Australia may be one of the most internet-connected countries on earth, with a super-fast broadband network on the way. But now the experts are warning there's danger with cyber crooks roaming the super highway.
Twins Anne and Helen were 20 years old when they learned they had been conceived from an anonymous man's sperm. They spent the next 20 trying to crack the mystery of his identity. Can a balance be struck between the rights of children and donor fathers?
It's almost as hard to get into Supermax as it is to get out. This 21st century jail-within-a-jail is exclusively reserved for the most sinister of criminals.
Across the world, coral reefs are turning into marine deserts. It's estimated that more than a quarter have been lost and that 40 per cent could be gone by 2010. It's almost unthinkable that Australia's Great Barrier Reef could be headed the same way.
Billions of dollars are fed each year into a nationwide prison boom that's seen the captive population nearly double in a decade. But could there be a relatively cheap and cost-effective way to stop prisoners reoffending?
Does a woman with the mental age of a two-year-old have the right to bear a child? Or should she be stopped - for her own protection and that of the potential child?
To its backers, Woomera played a humane yet crucial role in housing the growing numbers of boat people landing on Australia's shores. To its critics, this heavily guarded cluster of buildings, represented the dead heart of asylum-seeker policy.