But the attacking missiles were also using countermeasures and em pulses.

They twisted it, saying I had used countermeasures" - the tricks of a spy - "to try to fool the polygraph.

They'll use heavy passive and active electronic countermeasures too.

The top administrators are not averse to using extreme countermeasures to protect their sacred charter.

The Pentagon has said it intends to use such sophisticated countermeasures in future tests.

Nor have I ever heard of them using night-vision devices or using electronic countermeasures on hotel door locks.

If they are cloaked, or using other countermeasures, they will have to drop them while they fire.

The B-2 also could also employ active stealth capabilities using electronic countermeasures, if necessary.

More modern drones may use countermeasures, radar, and similar systems to mimic real aircraft.

He commented that "even Israel must stand up for international rights, and use proportionate countermeasures in their situation."