Although I would not be surprised that a site such as ATS could be used in such away (Ufology's post on FB in mind) I can give you some reasons to question the video that is supposedly from Anonymous.



First is an understanding of Anonymous history and what they are likely to target, for those that were around and remember OP Scientology you will understand how the system works.

This sort of site is extremely unlikely to have drawn Anons interest as a collective, so I expect it is an individual who is using the Anon mask so to speak.



The quality of video is so far below the par of what Anon will do as a collective that I instantly doubted its validity, but above all the entity that was Anonymous no longer really exists as it once did.



This may make you go "eh?!!!" but it is however the truth, for the simple fact is the Occupy movement saw the end of what you would term as classic Anon.



There is still an Anonymous but thanks to the whole Occupy thing anybody and their dog can call themselves such, what is more any hacker group can claim the name if they see fit to for any operation so it makes it very hard to tell what is the so called "real anonymous" and what is simply self-interested groups who wish to use the name as either good PR or cover.



Just my thoughts on this.