Barclays management face 'serious questions'

Both Prime minister David Cameron and Chancellor George Osborne have said Barclays Bank management has "serious questions" to answer over how it manipulated banking lending rates.

Barclays was fined £290m ($450m) after an investigation into claims that several banks manipulated the Libor rate at which they lend to each other.

It is hard to work out who the winners and losers are, with analysts working out the potential costs of lawsuits, as Hugh Pym reports.