How I tracked FBI aerial surveillance

When mysterious aircraft began flying tight circles over Baltimore in the wake of recent protests there, it soon became clear that they were part of an FBI surveillance fleet. Here, told in his own words and tweets, is the story of how one amateur sleuth helped reveal what the feds were doing. This story was originally posted on Storify and was republished with the author's permission. John Wiseman is a Los Angeles-based engineer.
On May 5 the Washington Post published Surveillance planes spotted in the sky for days after West Baltimore rioting.





They gave the registered owner of one of the aircraft: NG Research. That was enough to start digging.

...Continue reading via the source link.

Source:
http://arstechnica.com/tech-policy/2015/06/how-i-tracked-fbi-aerial-surveillance/