>However, it's only recently that we have developed tools that make it possible for one person (e.g. Snowden) to undo billions of dollars of secrecy by leaking more documents that one could physically carry if they had been printed on paper, then distributing them to millions at zero cost.

I've often wondered what has been said, or what kind of policies have been changed, or implemented, etc. in the NSA since Snowden came to the public forefront.

I wonder what they've done internally to try to ensure that this doesn't happen them again.