Re: These billion dollar surveillance phones and app companies....
>... are the retail arm of the NSA.
It is interesting to reread the thoughts of Edward Snowden on security:
https://forums.theregister.co.uk/forum/3/2015/11/12/snowden_guide_to_practical_privacy/
Either Ed, wasn't privy to all that the NSA were up to or they (the NSA) weren't into the collection of this type of metadata.
I get the feeling that we will see more of these accidential/unintentional leaks of metadata that permit inference about a person and their activities that they didn't intend to make public.