Blood on the streets

Well 3M are major players in the technology and hold a lot of patents about it...

'With $30 billion in sales, 3M employs 88,000 people worldwide and produces more than 55,000 products, including: adhesives, abrasives, laminates, passive fire protection, dental products, electronic materials, medical products, car-care products (sun films, polish, wax, car shampoo, treatment for the exterior, interior and the under chassis rust protection), electronic circuits, and optical films.'

I thought they made the reflective stuff rather than the day glo yellow "high viz"? Admittedly a lot of things contain both, but they're two different safety approaches...