Originally Posted by Osem

Who would measure that alignment? The same people who allowed the likes of Greece and Cyprus into the Euro?

It'd be interesting to see how migration might be affected if a decision to change the rules was going to be made. Might there be a sudden surge beforehand? Even if new rules were imposed upon new member states, there's still the question of the countless millions in the rest of the EU who currently have the right to go where they choose.

Maybe freedom of movement could be best managed by allowing nations to impose quotas although that would of course depend on the UK being able to gather rather far more robust migration figures than is currently the case.