jhgomez (Dominican Republic)
Eyes on top
Let's say there is a device that identifies certain frequencies and their origin. Put one of them in the top of each light post (or at least one in three) and a camera. Then adjust this device to detect the noise of a gun shot. It will activate the camera aiming towards the noise source. It could help to identify criminal situations and will stop crime somehow, since they will know that can be viewed.

Reward: Safer streets

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