Reportedly three other countries have made a
secret
agreement giving Ukraine a veto over publishing results of the
investigation of the destruction of flight MH17.
This article belongs to a body of writing that claims that MH17 was
shut down intentionally by Ukraine. That is an extraordinary claim
that requires extraordinary proof — it is much more plausible
that badly trained missile operators were mistaken about the target.
The articles I have seen are not extraordinary proof: for the most
part, the evidence is attributed to people I can't find much
information about, and I am not convinced it is for real.
For instance, this article says that the unusual flight path of MH17
has never been explained, but I recall reading that it (as well as
other flights before and after) were diverted away from a storm.
Nonetheless, the author personally attests to getting a runaround
in requests for information about this agreement, and I think that
point is credible.