UK visas and scientists
As for that awful 'freedom of movement of people' demand; are scientists too single minded that filling in a visa application is beyond them ? Anyway I can't see any scientist worth having on the project would fail to get a 'green card'.
Perhaps. At the moment, a scientist from a non-EU country would typically have to apply for a Tier 2 visa. The cost varies according to the details of the application, but is somewhere in the range of £700 to £1700 per family member. This is a rather substantial burden; if your prospective employer is not willing to pick up the cost (and few employers in science are rich enough, or are legally allowed to do so), you might want to consider your options. Especially if your other offer(s) do not involve the hassle or the expense.
Also, please do not delude yourself into thinking that if this process is applied to EU nationals, an equally expensive procedure would not be imposed on UK passport holders wishing to work in the EU.