A sailor wears a JCREW signal jammer from Northrop Grumman Corp. in a 2014 photo. The system, built in San Diego, foils radio-controlled improvised explosive devices, or IEDs. JCREW stands for Joint Counter Radio-Controlled Improvised Explosive Device Electronic Warfare. Photo courtesy of U.S. Navy

A sailor wears a JCREW signal jammer from Northrop Grumman Corp. in a 2014 photo. The system, built in San Diego, foils radio-controlled improvised explosive devices, or IEDs. JCREW stands for Joint Counter Radio-Controlled Improvised Explosive Device Electronic Warfare. Photo courtesy of U.S. Navy

Northrop Grumman Corp...

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