The Army is sending blimps to Iraq, to spot bad guys from the skies.Two 56,000-cubic-foot, tethered, "aerostats" will be ready to ship this summer, part of a Pentagon-wide push towards airships. The military likes the helium-filled crafts because they're cheap -- just $1.6 million each -- and because they can stay in the air much, much longer than regular airplanes or copters.Lockheed Martin, who got the Army contract for the Iraq-bound blimps, says they've built more than 8,000 of 'em for commercial and military customers.
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