Amnesty reveals gigantic Mexican Twitter troll-bot mob that threatens journalists, hawks products, and hoaxes trending topics / Boing Boing
The Mexican Twitter trolls work closely with the narcotics cartels and their government allies, suppressing news of corruption and atrocities and discrediting reporters who investigate massacres and coverups.
If Amnesty can identify the troll networks, then it is clear that Twitter can too. And Twitter have access to a lot more data to identify the patterns in their activity. The company can and should be doing more.