Shek

EDIT: Sorry, didn't have time to add my comment earlier. I just wanted to post this article as an example of the fact that the insurgents (for a long time now) build the IEDs bigger. Low-hanging fruit (light skinned HMMWVs) no longer exist, and so every bomb is bigger.

The main fix isn't building bigger vehicles (although it doesn't hurt), as that's a reactive strategy. You need a proactive strategy as outlined in posts #5 and #6 in this thread, Cultural Anthropology.

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"So little pains do the vulgar take in the investigation of truth, accepting readily the first story that comes to hand." Thucydides 1.20.3