surveillance or the gathering of information by surreptitious use of electronic devices, as in crime detection or espionage.
[ 1970-75 ]
surveillance or the gathering of information by surreptitious use of electronic devices, as in crime detection or espionage.
[ 1970-75 ]
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012