I'm starting to feel pity with Microsoft and some of the other american tech companies (Facebook, Google, Apple etc.)
THEY are the ones who actually suffer the most from the NSA spying.
Cooperating with the NSA gives them very little economic advantage, they're simply forced to do so. What does a company like Microsoft gain from building backdoors into their products? Very little, the economic downsides of people losing trust in their products is much worse, the current reports about the NSA cooperation has caused a huge mistrust in all big american tech companies that may seriously harm their profits in the future.
And yet, they can not even talk freely about it in public and explain what's really happening. "Sorry, national security, you cannot talk about this!"
In a way, the current NSA scandal may severely hurt the american economy, at least in the long run. And since economic well-being is also being considered "national security" (actually, that's one of the most important aspects), one might very well say that the NSA is currently rather the biggest danger to american national security.
Maybe the USA needs some intelligence service that protects american national security from national security agencies.