One of the lesser-known perks of becoming a government minister is the access it gives to a treasure trove of British art, ranging from Hogarth to Hirst. It's called the Government Art Collection, and ministers vie with each other for its best canvases to adorn their office walls. What does their artistic taste say about our political masters? The collection also has the delicate job of placing works of art in British embassies overseas. Mark Whitaker explores a fascinating world where fine art meets politics and diplomacy. Producer Mark Whitaker Repeated on Sunday at 12.15am