Overview: On Demand What you will see on Sunday night challenges all conventional notions about parenting. It may offend – perhaps even anger many of you. It’s called “attachment parenting” – a back-to-basics approach to child raising that’s becoming more and more popular with Mums here and around the world. The idea is that mothers agree to every demand a child makes – any time – day or night. They ask their permission to change a nappy, let them sleep in the grown-ups’ bed and even breastfeed them through preschool and beyond. But don’t just dismiss all of this as new age extremism. There is some compelling science behind it. Reporter: Michael Usher Producers: Phil Goyen, Hannah Boocock Bitter Pill It was the greatest medical tragedy of all time – a so-called wonder drug for pregnant women that devastated thousands of lives. Thalidomide was developed by German pharmaceutical giant Grunenthal in the 1950s and sold in millions of doses to an unsuspecting world. No one knows just how many babies died. But those that did survive suffered horrific birth defects. This week brought dramatic developments in a story we’ve been following for months. And on Sunday night, in a special investigation, we reveal chilling details about the origins and creators of this evil drug. Reporter: Allison Langdon Producer: Gareth Harvey At Any Cost They’ve been pushing their bodies to the limit, training like maniacs for their shot at sporting immortality. Now, in just a week’s time, our Olympic athletes will take on the best in the world. We’d like to think they’ll be competing on a level playing field. But the sad fact is, there will always be athletes who are prepared to cheat. Triple gold medallist Marion Jones caused a massive scandal when she admitted using performance enhancing drugs at the Sydney Games. And nowadays those drugs are even more sophisticated and difficult to detect. So when London organisers claim these will be the cleanest games ever, Marion isn’t convinced. Because with so much at stake, the cheats will always be a few paces ahead. Reporter: Charles Wooley Producer: Danny Keens