did they turn off GPS when this happenned!
No
Pera, they invaded Iraq.
I'm not discounting terrorist threats, but you haven't made an a clear case for your point of view. You are raising an extreme possibility but you are not applying risk assessment to your point of view.
Pera, I'm not going to make the scenario any clearer then I have. Perhaps you want me to write up a 'How To' manual ?
I guess you dont want a $500 bombed up UAV launched from a boat to interfere with Airservices implementing ADS-B. ...Talking it away does not make it go away.