Several comments and e-mails on my last post on trade expressed confusion about restrictions on highly educated foreign workers in the United States. (There was one complaint about repetition, as long as the press repeats the error, I will repeat the complaint.)
These restrictions take two forms. The first is formal licensing restrictions. The highest paid professionals, like medicine, law, dentistry, and accounting all have licensing requirements. These requirements present a confusing patchwork (in most areas, each state has its own requirements) that makes it extremely difficult for foreign professionals to get licensed to practice their profession in the United States.