Cambridge Consultants is a technology development firm and they have come up with a device, the prism 200, that can sense through a wall how many
people are inside a room or house and where they are in it. This device can be left at a location and a laptop can be used to monitor activity. The
updated Prism 200c is small enough to fit into a backpack, thus making it much stealthier to use. It is being used by homeland security, defence and
special forces, police, SWOT teams and military officers around the world but I'm not sure in exactly what countries. I just thought this was
interesting and was wondering what everyone else thought about this device.
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