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national security

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The Hunt: U.S. helping Tunisia fight ISIL

Md. police mum on growing use of cellphone tracking technology

The Hunt: Are nuclear sites safe from terrorists?

Exclusive: Airplanes, shadows worry national counterterrorism chief

Exclusive: NSA deploys game-changer against U.S. enemies

Target USA: DNI Clapper says ISIL can’t destroy U.S., but Russia can

More national security

Target USA: DNI Jim Clapper reveals unprecedented threats facing U.S.

Exclusive: FBI worried ISIL-recruited terrorists headed to D.C.

EXCLUSIVE: Hidden threats keep U.S. intelligence chief up at night

The Hunt: Authorities adjusting tactics to find terrorists

State Department issues alert to travelers in wake of attacks

The Hunt: ISIL’s attack in Paris exploits Europe’s distraction

The Hunt: Searching for answers in the Russian plane crash

Cleric suspected in Russian plane crash

The Hunt: U.S. Special Forces move into Syria