Well, I guess the NSA makes the most sense. They've been integrated into the corporate structure of FAANG for over a decade now, and they're the primary government entity making demands over this stuff. The who is a lot harder to track down - maybe there is a Wizard of Oz hiding behind one of our administrative curtains, but I think it's more of a bureaucratic process. Judging by what we know about America's surveillance infrastructure (eg. XKeyscore, Tempora, Boundless Informant), it would make sense if most of this software is developed in-house and then passed off to FAANG to implement and obfuscate.
Again, all of this is conjecture. There's a lot of strangeness that surrounds the US intelligence agencies though, so I'm inclined to make some sense of it.
Again, all of this is conjecture. There's a lot of strangeness that surrounds the US intelligence agencies though, so I'm inclined to make some sense of it.