I expect that the NTSB will be involved in the MH17 investigation as manufacturing country authority. It could even involve the FBI due to American casualties.
They sent out about 45 of our guys at the ATSB to assist alongside NTSB and other investigators. Quite a few very serious jobs involving our guys recently instead of the usual and more common GA incidents and loss of separation investigations/reports.
Hopefully these guys will be alright while investigating.