Work 'till You Drop?

With a record number of pensioners still working, Tonight explores what they are up to, why they are doing it and what it means for the UK. Noreena Hertz meets people joyfully working through their 60s and beyond, as well as those struggling to a find a job at an older age. The economic impact of an ageing workforce is revealed and the programme looks at how businesses are adapting to cope with a country working for longer.