Kevin Bales on modern slavery at TED 2010.
There are now 27 million slaves in the world, more than in any point in history. The total cost for sustainable freedom for all of them is about $11 billion.
Head teacher Paul Kelley said that changing the school day could help towards creating “happier, better educated teenagers”.
Winning the war on cancer? US death rates show broad decline (Ars Technica)