The Rise of the Killer Drones: How America Goes to War in Secret

One day in late November, an unmanned aerial vehicle lifted off from Shindand Air Base in western Afghanistan, heading 75 miles toward the border with Iran. The drone's mission: to spy on Tehran's nuclear program, as well as any insurgent activities the Iranians might be supporting in Afghanistan. With an estimated price tag of $6 million, the drone was the product of more than 15 years of research and development, starting with a shadowy project called DarkStar overseen by Lockheed Martin.

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