there have been articles in the FT, Economist and other such places about the "unsustainability" of public pensions (and of "defined benefit" pensions in general) - by playing on the card that private sector workers will be paying twice: for their own (stingy) pensions and for the taxpayer funded goldplated ones for public sector workers. Of course, the ocnclusion is the need to massively hike the retirement age

In the long run, we're all dead. John Maynard Keynes