US - ramping up the spy headcount brings more fears

latimes.com: U.S. counterintelligence officials are increasingly concerned that Al Qaeda sympathizers or operatives may have tried to get jobs at the CIA and other U.S. agencies in an effort to spy on American counterterrorist efforts.

The officials said that those who had come under suspicion were filtered out during the application process for providing false information, failing lie detector tests, applying to multiple spy services or flunking other parts of the application procedure.

But fear of possible penetration has grown because of what one official called "an intense competition" among America's intelligence, military and contractor organizations.

They are seeking to hire thousands of skilled linguists, trained analysts and clandestine operatives who can blend into overseas communities to collect intelligence and to recruit foreign agents inside terrorist cells. Link