John Mann MP - UK Treasury Select Committee

Britain's politicians have conflicting views on how to deal with the banks. They advocate root and branch reform to tame banking excesses, but they bristle at suggestions London might forfeit its status as the world's pre-eminent financial centre. John Mann is a Labour MP at the centre of the heated debate about the future of UK banking. Stephen Sackur asks him if politicians can impose their will on the megabanks without damaging Britain's economic prospects.