For the best debate on global technology, social media and the internet - presenter Gareth Mitchell explores the latest digital news and trends.
On Click this week, Gareth discusses the launch of controversial adult entertainment .xxx domains, the hacking of the internet domain system, and Steve Rosenbaum's 9/11 memorial app. (Picture: Ground Zero, site of the destroyed World Trade Center)
Bang Goes the Theory
Bang Goes the Theory is the BBC's guide to popular science. The gang are back and on a mission to reveal the science and technology we encounter every day, preferably with a bang!
Coming up in episode 5: Liz Bonnin investigates an increasingly common and unwelcome guest - the bedbug. Meanwhile, Dr Yan Wong explains why statistics are not to be trusted, and Dallas Campbell goes stargazing in California.
And while you're waiting for all that, watch Dr Yan show you how to fit a 50p coin through a 5p-sized hole (right).
Monday 12 September, 19:30, BBC One
Horizon: Are You Good or Evil?
What makes us good or evil? It's a simple but deeply unsettling question. One that scientists are now starting to answer.
Horizon meets the researchers who have studied some of the most terrifying people behind bars - psychopathic killers. One of these scientists discovered that he had the profile of a psychopath. And the reason he didn't turn out to be a killer holds important lessons for all of us.
Explore mankind's quest to explain the mysteries of the Solar System and beyond. Watch videos from the BBC television archive that bring important missions of exploration to life. (Picture: Buzz Aldrin spacewalks during the 1966 Gemini 12 mission. credit: NASA)