> Is it important
how the NSA spies on everyone?
I think that is by far the most important thing.
Imagine a hypothetical world in which it's been revealed that the NSA is spying on the entire internet through the means we generally expected them too, i.e. an army of super-smart crypto people and access to more computing power than God. What would happen following this revelation?
I anticipate that there would be outcry similar to what we've seen, followed by efforts to block their access. Companies like Google, Apple, Microsoft, all the tech heavyweights, would lead the charge. I think there'd be a lot of newfound interest in moving from crypto that's "good enough" to crypto that's deeply over-engineered. 1024-bit AES variant, anyone?
Instead, the NSA has gained their access largely through influence. This is smart, considering their mission. Why crack good crypto when you can just bypass it, or at least ensure that the crypto is not so good? It's certainly way easier. As far as we know, there's still no realistic way for them to crack a solid implementation of things like AES, so it's really the only way.
Are Google, Apple, Microsoft, et al leading the charge for better crypto in our world? No, because they're hopelessly compromised. Nobody trusts them, because the NSA has subverted all of them.
I anticipate that any new crypto, whether algorithm, system, or implementation, involving the United States in any way will be completely shunned. The US's tech giants will be shut out of a lot of activities. A huge chunk of the US's tech dominance will shift elsewhere. This will hurt the US economy and the US's security.
In short, the question comes down to, how do you avoid NSA spying? And that depends on how the NSA spies. If they spied due to math and computers, then you avoid NSA spying with better math and better computers. If they spied by broadly subverting a huge number of companies and organizations, as appears to be the case, then you avoid NSA spying by avoiding the American tech industry. This is tremendously damaging.