The points about Hincapie are good ones.
* He has to think very carefully and better be talking to a lawyer, as he's had some success with his clothing line, etc. (can lose a lot), and is particularly vulnerable to charges of blatant perjury if others corroborate Landis' story and he lies, playing the ever-loyal lieutenant card again. He could really get in trouble here.
* Looks like the govt. is trying to follow the money trail of who financed this stuff. This is the elephant in the room, but I would think it's very, very difficult to uncover. From the Fuentes imbroglio, we know these programs are very expensive. Where did this money come from? Doubt Lance financed a whole team's doping efforts. Hence, the interest in sponsor money, thus fraud, misrepresentation, etc. Over years, it's millions of dollars.
Start multiplying by several Postal/Disco riders (inner ring, at least) over several years....