Are the "International community" investigators really impartial? I see the 2 parties fighting over bringing their own set of investigators. BTW, more and more evidence of false flag are springing up:

1) Big Question: Why was a passenger plane flying over a war zone when all other commercial flight have been detoured off that zone? http://www.theatlantic.com/international/archive/2014/07/the-faas-notice-prohibiting-airline-flights-over-ukraine/374622/
2) The only proof that Ukraine has is a video released by them with a bunch of rebels talking. Can be very easily faked.
3) Report from ZeroEdge: http://www.zerohedge.com/news/2014-07-17/ukraine-releases-youtube-clip-proving-rebels-shot-down-malaysian-flight-mh-17
Very good piece reporting for instance that the timestamp of the video was done before the actual shot down.
4) Russia's ace in the hole right now has been it's restraint. It had nothing to gain by bombing down a passenger plane. Think of the germans and the Lusitania in WW1.
5) Is the moral outrage selective? If anyone wants to rage about dead kids in a war, I suggest they go see the pictures from Gaza being shelled right now.

But very importantly, a war vs Russia can go nuclear. You don't usually go to war over a downed passenger plane, especially not risking nuclear war.