We all know the NSA has access to servers hosted in the U.S. How are you protecting the archive from malicious tampering? Are you using any form of immutable storage? Is it post-quantum secure?
NSA already paid to back-door RSA, got caught shiping pre-hacked routers, can rewrite pages mid-flight with QUANTUM, penetrate and siphon data from remote infected machines.. what else could they do?
IA themselves could tamper with the data, no? It was never meant to be an official historical snapshot to be pulled up for any serious or official purposes. Although it has been used that way for high profile internet drama. It's just a matter of time (maybe during an election) before it's surreptitiously altered and referenced for nefarious purposes.