First, as for , "someone who apparently designed some Boeing planes" is dr Waclaw Berczynski, engineer, constructor of Boeing with 21-year experience:  . It looks like you haven't even read the section you've removed... Regarding to the access to the black boxes, please read that handed over transcripts of records of black boxes. on Polish Wikipedia based, inter alia, on government's site. And I suggest to read about some of the results of reading the transcripts: boxes stopped working above the ground and Błasik wasn't in the cockpit of Tu-154 M. If you refer to the final report and the sentence "...at the presence of Polish specialists and a Polish military prosecutor", it is like the lies of Ewa Kopacz about the fake-autopsies: "Polish and Russians worked side by side". And it came out that the documents of autopsies there are no polish names signed and the parameters of bodies coincide with the real at about 3-5%... About Binienda, he was awarded by the American Society of Civil Engineers for technical contribution in the development of modern space design with applications in civil engineering" and NASA:  and others and he cooperated with NASA in designing of an engine applied in Boeing 787 Dreamliner, read [pl.wikipedia.org/wiki/Wiesław_Binienda|here] with the refs. He explained many times about the data in his simulation model and appealed for a joint conference/researches with other specialists and officials: invite the prosecutors to the USA. And it was Artymowicz who actually want to confront his arguments in a discussion. And if you are screaming about "Newsweek Poland" as it is supposed to be an immaculate, high-reliable source, its editor in chief is known of his political views and I won't comment that...