Why is noone ever responsible?

So Tony has apologised for his idiot chancellor's tax credit policy. This is very big of him. Perhaps he would now like to explain to us why it was that his government has denied any problems with the tax credit system for the past year. Perhaps he could even consider holding someone responsible? You know, like say whose fault it is, and fire them. And if he could do it without bringing them back again a few months later that would be nice too.

And well done to the Lib Dems for their vigorous denounciation of yet another Labour bureaucratic balls up.

David Laws, the Liberal Democrat Shadow Work and Pensions Secretary, said that the reports showed that the design of the system was "flawed."

Mr Laws added that the call to write off overpayments was "sensible and logical".

Mr Laws' ability to capture the taxpayers' indignation in a few sharply worded phrases takes one aback. It's easy to see why the Lib Dems call themselves the real opposition.