https://phys.org/news/2018-05-google-worker-rebellion-military.html >An internal petition calling for Google to stay out of "the business of war" was gaining support Tuesday, with some workers reportedly quitting to protest a collaboration with the US military. >About 4,000 Google employees were said to have signed a petition that began circulating about three months ago urging the internet giant to refrain from using artificial intelligence to make US military drones better at recognizing what they are monitoring.