Nouriel Roubini, the man whose warnings over the credit crunch were ignored, tells Jon Snow that banks have learned little from the economic crisis and that Europe will probably face a double dip recession.

Jon Snow talked with the remarkable professor Nouriel Roubini, the Iranian-American economist who was almost alone in forecasting the crash in all its horror and dubbed Doctor Doom.

He says we are in a very bad way again - that when to raise interest rates is a very fine judgement but that ideally it will have to be in the next six months and then they may well go on rising.