" I honestly have a different viewpoint of what US involvement should be, because if this was done by a tetrorist group, or even worse, a country collaborating with a terrorist group, the US needs to be on top of it. They need to know exactly which group was involved, how they planned it, the whole background years leading up to it, etc., etc.. "
Oh, I agree with this entirely. Yes, also a team from National Transportation Safety Bureau has been there since very, very early - I believe they arrived the Sunday after the event.
I think our investigators, working together with the Brits and what they have been given by the Malaysians have likely already decided what they think happened. And if U.S. fades out of the picture, it would mean they did not think it was terrorism.