$7 billion on nanotech R&D, and what do we have to show for it?

In 2004, the US National Nanotechnology Initiative (NNI) had a strategy – and it was OK.  But what has happened since then?  Has progress been made against planned actions?  What have been the major challenges to progress?  Have effective solutions been found?  And how have the lessons and experiences of the last three years influenced strategic nano-thinking in the government?

You might be forgiven for supposing that the updated Strategic Plan – published this week – holds the answers.  No such luck!