Tom Clancy did not write any of the Op-Centre books, the Splinter Cell books or the NetForce books. In fact Tom semi-retired from writing books, but is "forced" to occassionaly write one due to fan/publisher pressure.
Read this to see who wrote the NetForce series:
http://en.wikipedia.org/wiki/Tom_Clancy%27s_Op-Center
As I mentioned before, in Rainbow 6, Spain is hardly mentioned except at the amusement park where the terrorists take those people hostage. Don't see where he could've gone wrong...at the top of my head...he does mention Stuka dive bombers were used during the Spanish Civil War. And as far as I know, he's correct. So what did he say about Spain which is so wrong? I think he also mentions Spain is crap at football...is this what you mean?

Though judging by the Spanish team's performance against France...:hmm:
(joking)
Edit: I just remembered in Rainbow 6 (the game) one of the best operators is a Spaniard. Seeing Clancy created the game as well as the book, I think you owe him an apology. Oh yeah...and what about in Clear and Present Danger when they form a Spanish speaking, latino squad of special forces to deal with the Colombians. And Ding Chavez is latino too....so please, let's not even start saying Tom has anything against Spanish/Latinos.