Disclaimer: I'm a person who wholeheartedly believes that both Kara and Adam Goucher were fully involved in the NOP performance enhancing drug program. With this in mind, it takes a lot for me to defend Kara Goucher.
I think that in the first part of the interview, Kara is very appropriate and professional. She repeats the "they were just better,". She's clearly upset as anybody who just finished fourth should/would be, but she handled herself well.
In the second part of the video, she loses it. There's no doubt that she'll regret blasting NOP. She knows that it'll come off as petty, but-----I'd ask anybody who's ever run a hard marathon to consider their state of mind after a 100% effort 26.2 mile race. I am messed up mentally for days after full young emptying the tank. If somebody stuck a microphone in my face and asked me some emotional questions right after a max effort marathon, I'd think I'd come off as crazy too.
In short, while I think Kara is guilty of everything she's accused Alberto of, I think we should give her a pass on sounding like a crazy person in the video. This ignores the obvious, as well, that she's probably telling the truth----just too much truth at the wrong time.