Brain Drain in UK
Highly skilled workers fleeing Britain? Imagine that. However, I concur with the commenter who labels this ambition drain. Over the course of history has there been any (free) country better at creating a hostile environment for it's most valuable citizens? The success and vibrancy of the U.S. is owed largely to Britain's chasing out the ambitious, the restless, and the non-conformists who built this nation.
The amazing part is the Brits just keep doing it.
It should be noted that not all of these emmigrants will find happiness in the wider world. I worked with a U.K. ex-pat at Microsoft for a while, helping him in his move from a tester to a test developer. This poor guy was in over his head but he liked to blame his failings on terrible competitive forces in the US. He felt we all worked too hard and too long and if we (the entire United States of America) would just slow down a bit he'd be able to keep up.
After a few months he moved on to slower pastures.