sniper said:
doesn't change the fact that his whole body language and tranquility and eye focus (not looking away, etc.) just screams truth and freedom.
cherrypick any random interview with any other cyclist being asked about doping, and you see major differences in body language.
Where did you get that training? Lie to Me?
In reality, that kind of interpretation of "body language" and eye focus is much more complex and dependent on the situation. There are no clear tell-tale signs of lying that can be interpreted unambiguously in any situation, even techniques, like a polygraph, used in court rooms in some countries have their flaws or are currently just unreliable. (There is no clear evidence that the polygraph is a valid and reliable instrument to detect lying.)
Those micro expressions, along with other signs in "body language" or eye focus, that seem to be very popular due to the tv-series "Lie to Me", are not much better. While they may indicate lying, they are not signs of lying itself. Above all, they are very dependent on preparation and (the lack of) rehearsal. At this point of time, Rasmussen has told his story so many times, had some much time to think about it, that all those signs became totally unreliable.
As compared to other interviews with cyclists, there are indeed some differences. However, we don't know if the differences are caused by the possibility that the other riders are lying and Rasmussen is telling the truth or because other riders don't always know when they are getting asked those questions while Rasmussen had the time to prepare himself for the interview for some time now.
Oh, and by all means, I don't say that it means anything, but Rasmussen has a different eye-blink rate to different questions (so the higher rate is not just dependent on bright television lighting). You might interpret that as him lying or being deceptive in some of the answer, but then again, it's not very reliable. Another thing, his facial expressions also differ, look at the lines on his forehead, the frowning in the split-second after he's asked some questions, but not others. Does that mean anything? I don't know, I don't think those signs are very reliable, if reliable at all, in the this situation.