The staff of the 'Double-R', as it is colloquially known, operates through a covert cell, so as to best evade government capture.

The group had formed the same leaderless-resistance model as the ALF, which consists of small, autonomous, covert cells acting independently.

If we're lucky, these will lead us to any more covert cells these guys have set up in the country.

The rank-and-file members operate in active service units of covert cells to prevent the organisation from being compromised by informers.

A typical covert cell operates as anything from a lone individual to a small group.

The carbonari were organised in the fashion of Freemasonry, broken into small covert cells scattered across Italy.

At this time, he became part of a covert cell of Islamists who were seeking to change the NiF from inside.

In the meantime, the structure of covert cells that Ibrahim had helped set up in 1994 had spread to Khartoum.

The allegedly decentralized and leaderless structure of the Animal Liberation Front could be seen as an example of anarchistic organizing, acting in autonomous, covert cells.

While different kinds of insurgency differ in where they place clandestine or covert cells, when certain types of insurgency grow in power, the cell system is deemphasized.