I will add that it would have been nice had the TSB been allowed to become a fully involved investigator when the black boxes were analyzed. It was an observer. That is because of very prescribed rules that exist, as I explained in French, which say that the ones who have the principal roles are the country where it happened, Iran; the owner of the airline, which is Ukraine; and the maker of the airplane, which is the United States and France. That's prescribed in the rules.
Our Transportation Safety Board has a huge amount of expertise. I'm sure that even as observers, they were able to get a very good understanding of what the black boxes revealed. Their report and their public comments were very valuable in recent months.