The government said it is looking at ways of ensuring people from other European countries don't arrive in Britain simply to exploit the benefits system. He said one way would be to register people when the arrive, to ensure they look for work.
One way area the government is cracking down those breaking immigration rules through 'sham marriages' as UK Editor Lucy Manning reports.
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In Berwick-upon-Tweed - the town at the northern-most tip of England - history has taught them that no border necessarily lasts forever.
His car was about to get towed away. But he had other ideas.
Our experts take a look at the key issues that would face Scotland and the rest of the UK if Scots vote for independence.