10 percent better!

So the plexiglass serated edge knives still make it thru?
Literally anything made of Plexiglas is theoretically a knife. Handful of materials that are like that come to mind. Bamboo.......
It would all show up on the xray though.
 
A single layer is never going to be 100%

The idea is to have multiple layers of defense and anyone with at least a sixth grade non-populist understanding of statistics would understand that.
 
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