I don't consider Sony trustworthy either. As far as the NSA's published guide you linked, of course it is in the national interest for them to do things like t

I don't consider Sony trustworthy either. As far as the NSA's published guide you linked, of course it is in the national interest for them to do things like that, and given the nature of a public document it would be foolish for them to put false or misleading information in it. That would be both bad, and comically obvious. I was thinking more along the lines of them promoting or mandating the use of encryption/technology that has weaknesses known only to them.