Suppressed research into how bird flu could become more infectious has now been released.
BBC World Service
Matt Wells investigates how President Obama has made an enemy of the Catholic Church.
Mark Lawson and his guests discuss the powerful influence of James Joyce's Ulysses.
BBC Radio 4
Assignment tracks the meteoric rise of Syriza, the new force in Greek politics.
Andrea Sella on the race to find a cheap inorganic way to mimic nature's green stuff.
4/4 Will looks beyond the British isles to see the monarchy as a global force.
Jane Deith asks if the official figures for hospital waiting times can be trusted.
Mathematician and code-breaker Alan Turing, and his role in the invention of the computer.
3/4 Michael Portillo discovers the Georgian period was not as elegant as we tend to believe.
The challenges facing the upcoming Earth Summit, according to the UN's man in charge.