This interview was conducted about three hours after the end of the tour…this is just the 45 second version.  CNN has the full 3:51 version but it’s not a version we can embed here thanks to the scripting.
Takeaway Lance quotes (some from the longer version):
“Well, I wanted to come in first. But sometimes in sports, there’s somebody that’s better.”
“A 38 year old man does not wake up like a 28 year old man.”
…and from Dr. Gupta:
“A couple things worth pointing out, Lance’s heart and lungs are different than most people. He pumps about 9 gallons per minute versus 5 gallons for a normal healthy 20 year old.  Also, with every breath he takes he gets about twice as much oxygen as anyone else, which could be advantageous.”
Gee…do ya think?