Techniques for the clandestine collection of HUMINT are collectively known as tradecraft.

Open source is the source of first resort for all disciplines and the precursor for clandestine and technical collection.

The urge to protect one's own literary property had its effect once again, however, and many of the items made their way into clandestine or private collections.

The Jackson-Dulles-Correa report held an opposite view on clandestine collection to the Eberstadt Report, interesting in that Dulles was a clandestine collection specialist.

The operations directorate is responsible for covert actions and the clandestine collection of information overseas.

In so checking, I was able to get an idea of the New Nuclear Espionage, a spy system combining open dual-use purchasing with clandestine collection, both protected by politico-diplomatic enticements.

This CIA article also draws attention to the symbiosis between 'analysts of information' and 'collectors of information', the latter including clandestine collection through espionage.

In high school during the mid-1950s, Fager got in trouble for writing a circulating a clandestine collection of satiric articles poking fun at teachers and school administrators.

The arguments against doing so suggest that the management of the two activities takes a quite different mindset and skills, in part because clandestine collection almost always is on a slower timeline than covert action.

The buildup has been broad-based, including human intelligence, clandestine collection and overt collection as well as broad increases in the analytical side.