Read this:
nytimes.com/2007/10/19/business/worldbusiness/19migration.html?pagewanted=1&_r=2&ref=worldbusiness
Indeed, Britain may soon face a novel immigration problem. As Poland's economy has improved this year, immigration has slowed, which economists say could cause labor shortages in British industries.
nytimes.com/2007/10/19/business/worldbusiness/19migration.html?pagewanted=1&_r=2&ref=worldbusiness