Earlier quoted context omitted.
If you just look at the largest 4 of those, you'd have 100Tbps of traffic to monitor, with an average throughput of roughly half of that. That's ~540PB ((50 Tbps / 8 bits) * 86400 seconds/day) of traffic a day with just those four. Add in the rest and you're likely talking ~Exabytes of data each day. And that has to all be processed on site. If someone wants to argue that the NSA is in these facilities I'd be 100% on…
That's nothing a rack full of fast switches can't handle. A rack full of fast switches already does handle it - where do you think the original copy came from? They will get a copy of the whole feed, but not store all of it - they will have heuristics for selecting interesting traffic.
But yeah, just a rack of "fast switches" is all it takes to route hundreds of petabytes of data each day. You should let the data center operators know. They'd save billions.