The night watchman of the future is 5 feet tall, weighs 300 pounds and looks a lot like R2-D2 - without the whimsy. And will work for US$6.25 an hour.
A company in California has developed a mobile robot, known as the K5 Autonomous Data Machine, as a safety and security tool for corporations, as well as for schools and neighborhoods.
"We founded Knightscope after what happened at Sandy Hook," said William Santana Li, a co-founder of that technology company, now based in Sunnyvale, Calif. "You are never going to have an armed officer in every school." [Unfortunately, or fortunately, as the case may be.]