This would never be allowed in the US. There would be groups that protested against it because some partially endangered species of bird mught be blinded by the intense rays of focused light if they flew through it.
“An engineer explained to us that hundreds of ear impressions were gathered in the name of research, and while each one obviously boasted its own unique shape and size, one single characteristic remained uniform across the board: the entrance into the ear canal is not a perfect circle, it's an oval.”
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This would never be allowed in the US. There would be groups that protested against it because some partially endangered species of bird mught be blinded by the intense rays of focused light if they flew through it.