There was a "brain drain" in the U.K. in the early 1960's, and the expatriate English doctor became a familiar sight in U.S. hospitals.
Now, many doctors working in the U.K. are Pakistani, and many of those are women -- lack of opportunity at home drove them out, and they came to the U.K. and the West to pursue their profession(s). Some people in the U.K. worry if all this compensatory outsourcing won't lead -- sooner than the blathering down at the Finsbury Park mosque of "Abu 'Orrible" and his fuzzy-wuzzy imams could do it -- to the Islamization of England.