Dentists tell us we should floss our teeth but what is the evidence that it really works?
Bulgaria's government quits after mass protests. We hear how the eurozone crisis hit hard.
Investigating global developments, issues and affairs.
How six American embassy staff escaped during the Iranian hostage crisis of 1979
We hear from the winners of the 2012 International Playwriting Competition.
Facebook's Mark Zuckerberg talks about Google, legacy and what keeps him awake at night.
Is it "who you know" not "what you know" when it comes to getting a job in Italy?
Afghan Masoud Juya went from weaving carpets to founding a school and now a university.
We hear from the down-at-heel south & well-heeled North ahead of this weekend's elections.
What scientists have learnt from the Russian meteor strike.
Lebanese trumpeter Ibrahim Maalouf brings Arabic scales to 1950s style jazz.
Friday 22 February 2013