To be fair to AIAA, most of the papers they publish are very, very dense, boring scientific treatises that are not at all easily interpreted by the uninitiated. Their safety relevance does not exactly jump out at you. This was the case for a handful of the loss of control papers, although perhaps not to the extent that is the case in other sessions, such as computational fluid dynamics codes used in three dimensional modeling of ice accretion on swept wings...you get the idea.
That said, I agree with the issue of locked PDF documents...once you actually get your hands on the them. I believe you will find some PDF recovery software produced by Ovis to be useful, although I have never actually had to recover a PDF document whose password I had...misplaced...
