First, intelligence must be collected on who should be 'trolled'. They can't do this themselves, because there are 'laws' against that, so they get some other government to do it for them, and then share the information:

"The United States, Canada, the United Kingdom, New Zealand, and Australia–basically Oceania from 1984–get together to spy on each other’s citizens. That’s how they cleverly get around laws against spying on their own citizens".

This intelligence is useful for other purposes also, such as 'net neutrality'. In reality, "they are masking the true nature of net neutrality–it really gives the government power to regulate aspects of the internet. And then they repackage net neutrality as necessary for freedom and open access to the internet". Nothing could be further from the truth. While we're on the subject of 'masking':

"Trump is the ultimate manifestation of their tactics to control attention. Trump is a big move which does a lot of masking the small moves. The media pays attention to his tweets, not his actions. When he does push for legislation, like a repeal of Obamacare, and it fails, attention drops because that seems to be the end of that". And so he quietly carries his agenda on to fruition while the media is trumpeting his one 'failure'.
Here's the rest:

http://www.thedailybell.com/news-analysis/how-government-agents-troll-online-to-divide-and-confuse/

"Another tweet, another legislative failure, another snub? We get it. But do we really get it?"

Indeed.

As I remember, the impression I got from what I read is that Afghanistan is the number 1 supplier, Columbia is 2nd, and Mexico 3rd, and most of it comes through Mexico and much of the raw stuff from the other countries is refined in Mexico, if you want to call that "coming from Mexico". If in the slim chance you are correct, it will be the 1st time you've ever been correct in my interchanges with you. Sorry, but I don't have time to read your article. There's just too much other more important stuff to go on to