Definitely, I would hope these kinds of systems become less useful with more encryption. I imagine, these kinds of collections I mentioned above are just one of many angles used in an investigation with this particular angle being for correlation and supporting evidence against a request to bookface, cloudflare, etc.
edit these network devices probably also carry voip/voice trunks from enterprise and possibly carriers such as VZW. No telling if those are encrypted or not. If China is able to tap that using these CALEA systems, I could see how that would be a big deal for stealing IP/secrets.
No. That’s what makes CALEA so damaging. It is ILLEGAL to encrypt covered traffic in a way that isn’t intercept-able by any random sheriff’s office in any county of the USA.
edit these network devices probably also carry voip/voice trunks from enterprise and possibly carriers such as VZW. No telling if those are encrypted or not. If China is able to tap that using these CALEA systems, I could see how that would be a big deal for stealing IP/secrets.