Germany has brought in more than 5 million Turkish workers, While France has permitted large numbers of Algerian and Libyan workers to come. Today these have become serious internal problems, and are used by scholars as warning examples to be heeded.
德國過去引進五百萬土耳其勞工，法國大量引進阿爾及利亞、利比亞勞工，如今都造成嚴重的內政問題，也是學者引以為戒的例子。