Onboarding non-US users to Facebook (Brazil & India particularly) & using address book contacts & metainfo from encrypted communications to create social graphs

Onboarding non-US users to Facebook (Brazil & India particularly) & using address book contacts & metainfo from encrypted communications to create social graphs. I've never really understood the argument of well its Facebook so obviously they are lying. They are getting a lot of value out WhatApp, and the blowback on Facebook would be pretty significant if they were lying and found out.