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The first Raytheon surveillance blimp is in the air over the Aberdeen Proving Ground, equipped with radar to detect incoming missiles. Privacy advocates have questioned the blimp’s activities, but military officials say the craft is exclusively for defensive national security purposes. (Photo: Raytheon)

Second military missile defense blimp to launch above Edgewood (access required)

The North American Aerospace Defense Command is launching its second and final surveillance blimp above Edgewood on Aug. 19 as part of a cruise missile defense system. The aerostat program, called the Joint Land Attack Cruise Missile Defense System (JLENS), is designed to provide persistent, line-of-sight radar surveillance and precision track quality data to Army and ...