It's a common problem for all interviewers. You have an interview to do - or disco to chair - where the top level ideas are fairly straightforward ... but which is based on an exceptionally complex of interlinked, detailed arguments.
That's certainly true of this disco on R4's Today between Justice Minister, Lord (Tom) McNally and former Labour Lord Chancellor, Lord (Charlie) Falconer."
It's about the bill that's about to come before the Lords, paving the way for a referendum on the Westminster voting system and for a reduction in the number of Westminster constituencies, a reduction that will mean all but two have around 75,000 voters apiece.
Lord Falconer opposes what is a complex bill on any number of grounds - including the lawyerly one that it is a 'hybrid'.
"Tell us what the changes would mean. Please don't say AV plus and stuff like that 'cos we'll all be losing it then."
"Fairer votes in a fairer constituency."
"That's a bit loaded so you have to unpack that."
This is a fantastically complex argument: it involves
"We're getting a bit technical here ... you might lose people."
