Fuentes repeatedly said that he had lots of clients outside cycling (plus see below), and then, suddenly, he didn't have anything more to say. So a deal is the most likely option (yeah, I guess they could also have threatened him, but that would only make it worse, not better).
Actually, I mixed them up. It was Fuentes himself who said that, should he talk, Spain would be stripped of the World Cup and the European Championship (that was after Operation Galgo, ie the *second* doping scandal he was implicated in:
http://www.sudpresse.be/sports/foot...re-la-coupe-du-monde-a-l-espagne-831186.shtml (this link is from a Belgian website, but they say this came out in Marca, so I guess you can easily find it in Spanish).
His wife said that Spanish sport would be ruined should she talk:
http://sports.espn.go.com/oly/news/story?id=3712847
Fuentes said it at the time (that and high-profile soccer players/clubs such as Real Madrid) before clamming up.
Other federations *did* sanction their cyclists based on what this revealed, though, so they obviously felt it was more than enough.
Plus, look at what Bartelby quoted: "
The Civil Guard has twice opened formal investigations into Fuentes' suspected doping activities only to have a judge close them down because at the time of the 2006 raids Spain did not have explicit anti-doping laws in place."
Which fits with what I wrote a few days ago: up until very recently, doping was *perfectly legal* in Spain (lots of performance-enhancing drugs could be bought freely at any chemist, you didn't even need a doctor's prescription). It's only with international pressure that they're backpedalling on this issue (they already lost the Madrid bid for the 2016 Olympics because of that), because now the cat is out of the bag and they don't have any more choice in the matter. They're sure taking their own sweet time about it, though...