Where are the UCD'ers for the Military?

An article in Slate points out that Iraqi jihadists are every bit as clever about creating IEDs as the Viet Cong ever were, but with vastly updated technological help. To counter the problem, the military has come up with seemingly workable ideas, such as a drone lead vehicle in a convoy that could be driven from the back, but which makes the virtual drivers carsick, door armor so heavy it can't be moved, and images so detailed that the human eye despairs of picking out field from background. The article says quite plainly

The enemy's simple technology suits human limits; our complex technology defies them. Our crazy menu of jammers confused our troops, making them think they were jamming the right frequencies when they weren't. Our tutorials in wave propagation flummoxed them. When the $800,000 IED neutralizer flunked real-world tests, the company that built it blamed operator error, denying that the machine was "a failure in any way." But if humans can't operate your machine, your machine is a failure.

If UCD'ers are getting so commonly accepted, why isn't the military letting us design and test their wonderful ideas? Most of our best people could tell them outright that these ideas won't work, because they've been tried elsewhere.