Drones Evolve Into Weapon in Age of Terror

The Sept. 11 attacks triggered a revolution in U.S. spycraft as the intelligence services shattered a longstanding taboo by launching an expansive program of targeted killings by remote control. The greatest shift both in tactics and mindset has been the embrace of the pilotless, hunter-killer aircraft known as drones.

The CIA, which doesn't formally acknowledge the covert program, has killed about 2,000 militants with drones, U.S. officials say, most in the past two years as President Barack Obama's national security team aggressively expanded the program.

(Gotta love these actions of a Nobel Peace Prize recipient.)

American citizens can be targets, too. Under the legal authority for the drone program, the CIA must consult the National Security Council before capturing an American posing an imminent threat, but no additional consultation is required to kill an American, a former senior intelligence official said.

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