Six months after the Iron Dome defense system rendered Hamas rockets largely ineffective during Israel’s Operation Pillar of Defense in Gaza,  I got a tour of the factory that produces its most vital component: a laser. The system, which can shoot down rockets within a circumference of 65 sq. miles, takes two trucks to transport and tens of millions of dollars per unit to build. In November’s Gaza fighting, it boasted almost 90 percent accuracy.

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