Alva Review-Courier -

A group of Microsoft workers is demanding the company cancel a contract supplying the U.S. Army with HoloLens headsets that they say would turn real-world battlefields into a video game.

Microsoft's head-mounted HoloLens displays use augmented reality, which means viewers can see virtual imagery superimposed over the scenery in front of them.

A letter signed by more than 50 Microsoft employees Friday and circulated on an internal messaging board said the technology could help soldiers spot — and kill — adversaries on the battlefield.

They say they "refuse to create technology for warfare and o...