[Cryptography] Encryption and anonymity as top tools for images of child sexual abuse

[John Young]

NYTimes lengthy report on out of control growth of images of child 
sexual abuse highlights encryption and anonymity as premier tools for 
avoiding discovery, prosecution and shutdown.

https://www.nytimes.com/interactive/2019/09/28/us/child-sex-abuse.html

Silicon Valley giants are pilloried for failing to bar abusers.