In the past five years 100,000 wives, husbands and children of EU citizens have moved to Britain under a lax system that bypasses rules for Brits.
British people who want close family from outside Europe to move to the UK have to prove they earn around £18,000 a year before they get visas.
But separate rules for EU citizens mean they do not have to bring in the same wages before flying in relatives. They then get the same right to benefits as unemployed Brits.
Sir Andrew Green, chairman of Migration Watch