Is more than £100 billion on projects such as schools and hospitals being wisely spent?
In the NHS there is a fear that PFI involvement skews the distribution of resources.
While in Education projects are slow to start.
Gerry Northam reports.
Hear the full story on Radio 4: File On 4 Tuesday 12 June 2007 at 2000 BST, repeated Sunday 17 June at 1700 BST.
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