The South American trade union demands that its people know no boundaries, according to the BBC:
The EU laws, due to come into force in 2010, could see illegal immigrants held for up to 18 months and face a five-year ban on re-entry if expelled.
….In a joint declaration, [Mercosur leaders] rejected “every effort to criminalise irregular migration and the adoption of restrictive immigration policies, in particular against the most vulnerable sectors of society, women and children”.
They used to call this sort of thing an invasion, sending your people across national boundaries and demanding full rights to that territory. If the EU caves on this, I bet Hitler would be kicking himself right now. He might have had Poland without a fight had he just demanded an end to “restrictive immigration policies.”