From Our Own Correspondent

Tunisia's fragile revolution is under threat from the violent uprising in Libya. Pascale Harter, investigating in these borderlands, also reveals what a football commentary sounds like in Libya where the only name permissible is that of Gaddafi. The blockade on Gaza means that many people living in that territory never get to leave. Jon Donnison's been meeting two men, at the Erez crossing into Israel, who get nearer than most. Cheung Chau island, not far from Hong Kong, has become notorious as a place where people go to kill themselves. Claudia Hammond's been there finding out how the local community is trying to change all that. Need to cure a headache? Or impotence? A remedy can be found at a traditional medicine market in Johannesburg. Stewart Maclean's been there to see what's on offer. And Rajesh Mirchandani enjoyed what some would consider the perfect posting - as our man in California. And yet, he has some rather controversial views to share with us about the sunshine state.