I was reading Rainbow Six by Tom Clancy this morning, and he compares his characters to the 'pros from Dover'.
This was a phrase that I also remember hearing in the movie M*A*S*H - so it seems to be a phrase in use in 1970 (and possibly 1950s, although the historical accuracy of the movie could be put into question).
So - where is this Dover? And who are the pros and why are they held in such regard?
M*A*S*H
of the book in comments here? Those stars mess it up! Comments seem to be different than questions or answers for the mark-down.