The Executioner, however, wasn't what could be called "normal covert means."

Initially through covert means but when that failed they moved to plan B and obliterated it.

He is instructed to use covert means of cultural imperialism to subdue "patriotism" in any form.

In the case of highly sensitive information, or data that can be gathered only by covert means, they are highly effective.

The purpose of these programs was to "investigate whether and how it was possible to modify an individual's behavior by covert means."

Having failed to check things by covert means, they decided to be more direct.

The point was to gain power by covert means.

The cooperative also served as an effective covert means of spreading the ideals of the revolution.

In recent low-intensity conflicts, additional covert means have been added.

Nor was there any way into the base by covert means through either of its three blast-doored entrances.