We don’t know why the boffins at Texas A&M decided to make such a vicious anti-truck barrier. We’re not even sure such a thing is necessary. But wow, does it ever work.

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Here, captured from every gory angle, is the Texas A&M Transportation Institute’s newest truck-beheading gizmo in action. In slow motion.

According to the Houston Chronicle, these barriers are intended to help protect U.S. State Department buildings—which is about the only situation we can think of that makes any kind of sense of the violence and destruction shown here.

Surely there are safer, lower-impact ways to slow and stop wayward trucks. But when the nation’s safety is on the line, perhaps maximum attack is the best course forward.

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Whatever the story, it sure makes for some interesting video.