When Smoking is a Good Thing

If you work at TARDEC (the Tank and Automotive Research Development Center) you pretty much spend all day thinking about how to increase the survivability of ground vehicles during combat operations. In fact, the folks at TARDEC have created a nice metaphor to explain levels of survivability on the battlefield using none other than your garden variety onion. The metaphor works well when you consider that peeling back the layers of an onion, is not unlike

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