Soldiers outsmart military robot by acting like video game characters

In the upcoming book "Four Battlegrounds: Power in the Age of Artificial Intelligence" by Paul Scharre -- an excerpt of which was posted on Twitter by The Economist defense editor Shashank Joshi -- the author relays an anecdote about a time when the U.S. military used soldiers to refine an AI system's ability to detect people. After six days of training the algorithm by having soldiers walk around, writes Scharre, the engineers on the project flipped the script, pitting the soldiers against the AI by placing the robot in the middle of a traffic circle and tasking the soldiers with approaching it undetected.