It may be mentioned here that not all passengers are subject to pat downs, only those passengers who set off the metal alarm have to go through the screening, and "Ms. Shankar had passed through the metal frame without setting off the alarm".
Cade mencionar que no todos los pasajeros son sometidos a revisiones manuales, solamente aquellos pasajeros que activan la alarma de metales deben pasar por la revisión en pantallas, y "la señora Shankar había pasado a través del marco de metal sin activar la alarma".