I've now done a bit of reading of who Kimmage is, and his past. He's been vilified by the system (and literally sued by UCI officials) for telling the truth, and it's about much more than his book. Here's a 2010 article where he expresses frustration that even the clean riders perpetuate the system by not speaking out, and you can sense his frustration I think that Dan Martin is being robbed by competing against riders/teams still playing the doping game, and Martins quiet on the subject. I didn't read it that he thought Dan Martin was "fair game" though, quite the contrary. He seems to have a staggering respect for Martin.

EDIT: It's interesting rereading articles from 2005, 2007, 2010, 2011 - you read again and again that top cycling officials are saying each time "now we've fixed it, problem over, nothing to see here, time to move on..." And then LA finally goes public in 2012, and reveals the utter corruption of the whole game. I really think that the system is better than it was, and there are enough Dan Martins to keep me engaged with the sport. But it's taken people like Kimmage to shine a light on this stuff, and I hope he continues to.