And what if the system detects not a check bouncer but a probable terrorist?

FORBES: CyberSleuth

Prior, too, finally had to depart, nicking a high bouncer from Ben Hilfenhaus - although the dismissal was delayed as umpire Billy Bowden radioed the third official to check Hilfenhaus had not sent down a no-ball.

BBC: Ashes: England close in on series victory in Australia