When it comes to debate, how combative is too combative? When historian Niall Ferguson and novelist Jane Smiley appeared on Start the Week, a heated discussion took place about the nature of historical truth. But while a few listeners enjoyed the sparku exchange, it was too much for many. Two Feedback listeners hold their own debate, asking whether the exchange made for great radio or an argumentative mess. Roger Bolton is in the chair, but can he mediate?

Last week saw BBC Radio 4 celebrating National Poetry Day, with a marathon of live programming hosted by Andrew Marr, exploring British history and identity through poetry. 'We British: An Epic in Poetry', considered verse by the likes of Donne, Tennyson and Tempest, with contribution from a wide array of actors and experts. But how did the programming define British? And was the choice of verse radical enough for our listeners' tastes? Roger puts the listener reaction to the BBC Bristol Arts and Poetry editor, James Cook.

Last week, a Radio 4 play took on the difficult subject of Female Genital Mutilation. Many listeners were left shocked and moved. Written by Charlene James, the play told the story of two South London teenagers both affected by FGM. Listeners tell us why they felt they couldn't turn off.

And, what on earth is Grass Frost? Listeners have spotted the term popping up on the BBC's recent weather output, but the new terminology has left some listeners baffled. Roger speaks to BBC weather forecaster, Peter Gibbs, for answers on this meteorological phenomenon. And while he's there, where did 'pokey showers' come from?

Producer: Katherine Godfrey.