That is correct, but it takes more energy for a European national to move country because of the barriers of language, customs, laws, tax systems, etc...
As an example, I have worked in Portugal, Spain and now the UK and I don't know if I will ever be entitled to a state pension when I retire even though I payed pension related taxes in all of these countries.
In the US, AFAIK, it's a bit more homogeneous, no?
There will not be any state pensions in any of those countries by the time you retire, make your own provision. This debt crisis is about unpayable liabilities, among other things.
As an example, I have worked in Portugal, Spain and now the UK and I don't know if I will ever be entitled to a state pension when I retire even though I payed pension related taxes in all of these countries.
In the US, AFAIK, it's a bit more homogeneous, no?