Comment by TangoTrotFox

Another 'fun' implication of this are the increasingly large number of sites that try to obtain your phone number either through SMS messages during account setup, two factor authentication, or any other number of ways. The accounts you have on those sites link directly to your physical presence. Taking it one small step further, any accounts on other sites you have linked to those accounts are similarly effected. Taking it one step even your dynamic IP address at any given moment can end up working as a physical identifier.

The amount of information the NSA has on people is going to be phenomenal. It'd be interesting to be able to glimpse the data just to see how much we all give away. Here's to hoping we never once ever end up putting a 'bad' person in high office because the amount of targeted damage somebody could do with this information is just staggering to even consider.