If by "trust" you mean "an accurate belief in the actions of another," I think we can trust the NSA. We can trust them to collect data wherever and however they can, with or without authorization. I think we can count on them to operate with casual disregard for the law. I think we can trust them to continue doing exactly what they've been doing even if the legal pretext they had for doing it is no longer available. So in that sense, do I trust them? Absolutely. I have high confidence I can reliably predict what they're going to do.
