Davos 2012: Worries about eurozone

There is an urgent and gloomy tone to this year's gathering of the world's richest and most powerful people at the World Economic Forum in Davos.

More than 2,600 delegates are attending but the organiser behind the conference maintains that capitalism in its current form no longer fits the world around us.

Tanya Beckett reports from the Swiss ski resort of Davos.