A．The new law expanded the number of baggage screeners.B．It required that security personnel operate metal detectors and X-ray machines for possible weapons or illegal substances.C．It required that ail passenger luggage, including checked luggage, be screened.D．It required that all checked luggage be put through special explosives-detecting devices.
A．The new law expanded the number of baggage screeners.
B．It required that security personnel operate metal detectors and X-ray machines for possible weapons or illegal substances.
C．It required that ail passenger luggage, including checked luggage, be screened.
D．It required that all checked luggage be put through special explosives-detecting devices.