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Was I alone in struggling to find sympathy for Sir Paul Nurse ("Nurse turns on US as research is 'besieged'", March 3)? Only two years after leaving Britain for the US (presumably attracted by, among other things, higher levels of funding), the Nobel laureate may now be on his way home. He seems to have realised that not only is the US funding pot not limitless but also the political leadership lacks respect for biomedical research. What is not clear is why he was surprised by this. Maybe Nurse should apply for funding to look at relative chlorophyll levels in US v British lawns?

Jennifer Roberts Sheffield University