Did FBI just admit to roswell ?

[Bring4th_Austin]

The guy that requested this document in the first place, believes it's a hoax: http://www.openminds.tv/old-fbi-ufo-files-655/

I don't quite understand...who would be perpetuating a hoax here? The FBI agent mentions this information came from an Air Force investigator. Would this not be a legitimate Air Force investigator, or are we questioning the source the AF investigator got his info from?

I suppose the fact that there is no mention of how the AF investigator concluded these things hampers credibility, but where's the hoax?

But the AF investigator didn't 'conclude', he interviewed someone who told him the story.

Where can I confirm this information? The memo only says that the AF investigator "stated" all of the claims, without any remark on why he made the claims, whether he believed them, or how the information was gathered (interview or otherwise).

Are there additional FBI or AF comments on this memo about where the AF investigator got this information?

(And from this comment, I'm guessing the hoax would be from the AF investigator's interviewee)
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I just caught the part of the memo I think you're referring to about an interviewee:
"According to Mr. (Censored) informant, the saucers were found in New Mexico due to the fact that the Government has a very high-powered radar set-up in that area..."

This is implying the information about the radar set-up causing the crash was from an informant, no reference to how the rest of the information was gathered. Was this what you were talking about?