Palestinians censored for using words such as "martyr" and "resistance."
Mobile tracking scheme to enforce quarantine reveals previously unreported Shin Bet data collection.
Graduates of Israeli military unit have developed highly invasive technology.
Almost a fifth of all Palestinians detained last year by Israel were children in Jerusalem.
Crackdown comes as Israel, EU team up with social media giant to silence dissent.
Facebook transparency reports contradict Israeli government claims on censorship of Palestinian content.