Are we sure its FBI and not some bigger 4 eyes operation? "Mystery Plane With No Callsign Circles South London For Hours": http://www.huffingtonpost.co.uk/2014

Are we sure its FBI and not some bigger 4 eyes operation? "Mystery Plane With No Callsign Circles South London For Hours": http://www.huffingtonpost.co.uk/2014/07/22/mystery-plane-no-callsign_n_5608777.html http://www.huffingtonpost.co.uk/2014/07/22/mystery-plane-no-...