http://www.ft.com/cms/s/30f652dc-18d7-11db-b02f-0000779e2340.html
Andrew Taylor
"The number of migrants given national insurance numbers to get work or claim benefits jumped by 51 per cent in the 12 months to the end of March, according to official figures.
The rise to 662,000 was boosted by migrants from eastern Europe, particularly Poland, who have flocked to the UK to find work since their countries joined the European Union two years ago. Only the UK, Ireland and Sweden initially allowed free access to workers to accession countries."