`At least three million of us are not saving enough for our old age. The Government says we should work on beyond our retirement date, to make up for pension shortfalls. So are we entering a world of high-tech grannies, forced to work till they drop? Perhaps not, because many employers don't want older workers. The Money Programme investigates ageism at work, and what it means for the chances of older people earning their way out of Britain's pensions crisis.' [BBC Learning Business].