These are the three biggest obstacles for a Brexit science deal

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For more than a year, a question mark has hung over the links that will exist between UK scientists and their European Union counterparts after Brexit. Could these strong and vital ties survive unscathed? A lot is at stake.

So hopes were high when last week the UK government, as part of Brexit negotiations, finally set out its hopes on this. It was widely expected to summarise the relationship that the UK has enjoyed within the EU and express a desire to fully continue that scientific collaboration. On this, its position paper