IEDs, or Improvised Explosive Devices, are a sad fact of war in Iraq and Afghanistan, so you'll see the influence of these deadly weapons in this list of the
US Army's top inventions for 2007. Every year the Army selects the top refinements, outright new inventions, or streamlined weaponry, and pumps out a list. This year's list features several new types of Humvee armor, GPS-guided artillery rounds, and a wheeled contraption for vehicles called SPARK (above), which sniffs out IEDs before they have a chance to do any damage.
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