The UK may find its scientific wings a little clipped when it leaves the European Union. The UK gets more out of the EU's science budget than it contributes, and EU natives are more hesitant to accept offers than before Brexit. "One of the things we're most concerned about is access to talent," says Michael Kunst, a Munich-based partner with Bain & Company. "That's going to be a major threat to U.K.-based companies, and it could be the real Achilles heel once the dust settles."