It's true that the Chancellor is not solely to blame for the unravelling of our retirement schemes. In the 1980s and 1990s, many companies were so complacent about funds being in surplus that they took "pensions holidays": they simply stopped paying in. That action now looks almost criminally negligent.
A sharp rise in life expectancy has also played a part. The longer that pensioners hang around, drawing from the pot, the harder it is for funds to be confident about meeting future obligations.
But all that pales alongside the Chancellor's decision to pay for his profligate spending spree on unreformed public services in part with the money of millions of pensioners.
Yeah maybe employers cutting contributions had an impact, yeah maybe people living longer than the actuaries had accounted for in their calculations matters a bit. But it's really Brown's fault...
No figures on all of this you notice. It would be interesting, for example, to see the comparative impact on a typical scheme of the abolition of tax credits versus changes to mortality assumptions. You might also want to have a look at the actual cost of the tax change compared to the value of contributions holidays taken by companies.
Let's make no bones about it, this is an attempt by the Right to try and pin the pensions crisis on Brown. It's factually flawed and can be proven to be so but unless people start making noise about it the simplistic "Brown killed the pension funds" version will become the popular wisdom.