Even if the CIA was 100% involved do you think a story like this will ever be completely uncovered? It was international espionage. A lot of credit goes to Mendez since he came up with the idea that saved lives. This is the article the screenplay was based on http://www.wired.com/magazine/2007/04/feat_cia/
Someone mentioned that the guy who Afleck played was originally Hispanic I guess no hispanic actors were available *shrug* Rocket River
OR..... Affleck's one of the very few producers/directors who'd hire Ben Affleck to "act" in a movie. Hell, the lead role could be Japanese, and Affleck as producer: "You know who'd be great in the lead role? ME!"