@hawkeye10,
I few comments first child porn being a billions of dollars business seem to be in question as it is my understanding that most child porn are traded either between collectors over social networks or P2P networks.
The porn being in large part either very old material dating back even before it became illegal or produce by some of the traders themselves.
Pay for websites in this material seem rare and are shut down in short order so where are the billions coming from??
No one had been allow to do independent academy research as those who had try to do so had ended on in courts charge themselves for having child porn so other then thin air where do they get these numbers from?
I also been using Google news to keep current on this subject as I am interest if law enforcement in running into encryption and if so what success or lack of same had law enforcement have in dealing with it. I found not one percent of the people who are doing this seem too had taken the trouble to used freely available encrypting tools for some strange reason.
In any case, there is one character that these people seem to have in common, for the most part and it is not being child molesters themselves but that most of these people tend to be useful citizens such a lawyers, police officers, firemen, doctors, military officers and in one amusing case an IT guy working for the FBI at their Washington headquarter.
UK seem to be far saner in at least grading the material and not having a minimum sentence of four years no matter how mild a picture is if it deal with someone one day younger then 18.
As I had said it is strange that in my state of Florida a 22 years old can have sex with his 16 years old girlfriend legally but can not have a naked picture of her.