Why so many embarrassing fiascos?

 
Why do so many of our public sector projects end up massively expensive, heavily over budget, late to be delivered, and faulty?
 HS2 will not be a particularly attractive journey, as most of the line will be in tunnels or cuttings
 How much does a door cost? Well if it’s replacement one for the entrance to the House of Lords, the answer is £9.6m, which is about a thousand times more than most people might think reasonable. The original estimate was £6.1m.
Oh,