Shhhhhhh. If they told you, they'd have to kill you.......Assets of that nature would be a) easy to spot and b) easy to note the operation of*, IF 1) you know what to look for and 2) aren't prone to believing in fairy tales, myths, urban legends or media hype; they wouldn't need to tell me ...
(*You may not own appropriate technical equipment or skill to detect/sense or observe this, but please do not project your lack of equipment, skill or technical knowledge on others.)
HOLY SH!T! Next time I'll remember the /sarc, OK?