Add Yahoo as a preferred source to see more of our stories on Google. In every corner of the country and around the world a relentless competition is taking place between U.S. counterintelligence ...

Provides technical surveillance countermeasures; eavesdropping detection; radio frequency sweeps; threat recordings; photography; skip tracing and missing persons investigations; computer networking; ...

In every corner of the country and around the world a relentless competition is taking place between U.S. counterintelligence services and the intelligence services of foreign powers. The contest ...