Speaking at the Government UK IT Summit in London last week, Granger attacked those questioning aspects of the programme for "scaremongering".
The NHS IT chief said claims that the project was surrounded by undue secrecy were "just repugnant". He asked for "space to get on successfully with what we have been doing for the last 18 months".
Later in the conference, panellists, including senior members of the national programme, were asked about their biggest concerns for the project.
Several issues were raised, including the sheer magnitude of the project, the importance of getting clinician buy-in and the need for local leadership to carry through the implementation of centrally delivered IT systems. Press scrutiny of the national programme was not highlighted as a cause for concern.
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