What does rising government debt tell us about the state of the UK economy?

In the UK, with government debt rising and gilt yields under pressure, some commentators have even raised the spectre of an IMF bailout but how realistic are those fears, and what do they tell us about the state of the UK economy right now? David Smith, Economics Editor with the Sunday Times took a call from Bobby to assess the health of the UK economy and discuss whether the idea of the IMF having to step in is far fetched.