I found this interesting q & a with Travis Tygart and some journalism students... very interesting to get an insight into his motives for doing what he is doing. He does not in any way whatsoever seem like the corrupt type that Lance Armstrong and his legal team are trying to convince people that he is. In fact he seems like Lance Armstrongs opposite.
http://www.youtube.com/watch?v=6b_kAU8QdPk
http://www.youtube.com/watch?v=6b_kAU8QdPk