I also seem to recall one international arms dealer , Adnan Koshoeggi ( spelling-memory might need tweeking ) not only surfacing during the Iran-Contra hearings, but again in 1991-92
during the revelations and subsequent hearings of the "outing" of BCCI ( Bank of Commerce & Credit International ); the Arab-funded enterprise whose clesar agenda was to become the Pan-Arabian Citibank. Problem was they were discovered because of the heavy rollodex of international arms dealers ,drug cartels, and terrorists whose money they laundered and transferred hopefully out of sight of western eyes.
Well ol' Adnan was quite the "deal broker" for the Reagan admins' spooks with the head-spook, William Casey ,whisked off to hospital for brain cancer then dying in hospital just before he was scheduled to give testimony to the Iran-Contra Hearings panel. Somehow the monent I read the news about his going into hospital the weekned befoire the Monday he was supposed to make an appearance ,that he was never coming out again.