Analysts are reported to have used intelligence tools to track social media posts
Their work falls under the Internet Covert Operations Program (iCOP)
That was first revealed in April when it came under scrutiny for tracking Americans social media posts ahead of protests
Now it emerges iCOP is more far reaching than previously thought
The USPIS is said to use Clearview AI to help identify unknown targets in an investigation or locate additional social media accounts for known individuals
It also uses Zignal Labs - which runs keyword searches on possible threats - and Nfusion - which creates anonymous online accounts - in its tracking