Did you read the article at all????
They made fake terror videos, The real terrorists would pick them up and the software on the the disks would ping there location using.
"The CDs were set up to use Real Player, a popular media streaming application which connects to the internet to run. Wells explained how the team embedded a code into the CDs which linked to a Google Analytics account, giving a list of IP addresses where the CDs had been played.
The tracking account had a very restricted circulation list, according to Wells: the data went to him, a senior member of the Bell Pottinger management team, and one of the U.S. military commanders.
Wells explained their intelligence value. If one is looked at in the middle of Baghdad
you know theres a hit there," he said. "If one, 48 hours or a week later shows up in another part of the world, then thats the more interesting one, and thats what theyre looking for more, because that gives you a trail.
The CDs turned up in some interesting places, Wells recalled, including Iran, Syria, and even America."
This is just like when we fingerprint and get retinal scans for every male who you suspect is a terrorist or insurgent. The scans and prints are uploaded into a system which is linked to DOD, STATE, FBI, CIA INTERPOL, MI6, MI5 so that when said bad guy pops up again doing bad things you can grab him right there.