Clare Lockhart calls for a new model of engagement for the developing world.
BBC Radio 4
Entrepreneur Hilary Cottam unfolds her vision for redesigning the welfare state.
Matthew Engel warns of a new threat to the English language from Americanisms.
Christina Patterson says we should stop making excuses for bad nursing.
BBC Radio 4 FM
Writer Penny Pepper gives her perspective on human identity as a disabled person.