Historian Richard Weight asks why the problem of drug addiction has proved so intractable.
BBC Radio 4
Andrew Brown explores how believers and sceptics see the role of religion.
BBC Radio 4 FM
Edward Stourton reports on Britain's stretched armed forces and use of military power.
Must our human rights be balanced by legal responsibilities? David Walker investigates.
Dr Zareer Masani asks if India's new found prosperity is filtering down to the masses.