Thanks to Amazon, the world has a nifty new cautionary tale about the perils of teaching computers to make human decisions. According to a Reuters report published Wednesday, the tech giant decided last year to abandon an "experimental hiring tool" that used artificial intelligence to rate job candidates, in part because it discriminated against women. Recruiters reportedly looked at the recommendations the program spat out while searching for talent, "but never relied solely on those rankings." The misadventure began in 2014, when a group of Amazon engineers in Scotland set out to mechanize the company's head-hunting process, by creating a program that would scour the Internet for worthwhile job candidates (and presumably save Amazon's HR staff some soul crushing hours clicking around LinkedIn). "Everyone wanted this holy grail," a source told Reuters.