Admittedly, I'm confused. Why would the NSA claim direct collection, while companies reiterate no "direct access"? What's going on there?
I can think of a few ways to deal with this:
a) Google/FB/Yahoo are unaware at top levels (Larry, Matt Cutts, whoever) of the information they expose, presumably due to a gag order or other legal mechanism on those actually facilitating the exposure.
b) G/F/Y are aware at top levels, but consider collection indirect, or not vast, and the NSA PowerPoint creator does not share the same definition. For instance, perhaps G/F/Y consider access "indirect" because it complies with a court order which has been reviewed, or because selected data has been quarantined in a separate server.
c) The terms "direct access" and "collecting directly" mean the same thing, but NSA PowerPoint is false, or constructed by someone who doesn't understand the program.
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I would like to limit the discussion in this thread specifically to reconciling these two claims. Discussion about the extent and value of surveillance are worthwhile, but best done elsewhere.
[0]http://www.guardian.co.uk/world/2013/jun/08/nsa-prism-server-collection-facebook-google