Was David Cameron right to order an investigation into the Islamist organisation?
The MPs' expenses row has claimed another victim, five years after the initial revelations
Tom Esslemont demystifies the debate surrounding the cholesterol-lowering drugs.
How can a plane disappear, and why are we no nearer to solving the enigma of flight MH370?
A Danish zoo caused outrage when it killed a giraffe. Do UK zoos do similar culls?
Is Amanda Knox really guilty of the murder of British student Meredith Kercher?
Phil Kemp reveals the ideological battle between Ofsted and some of its inspectors.
Edward Stourton investigates Turkey's most powerful grassroots Islamic network.
What does the popularity of controversial comedian Dieudonne tell us about France today?
What caused the trouble at Oakwood Prison? Hannah Barnes investigates.