Robots have been a staple at Amazon warehouses for more than a decade, performing tasks formerly completed by humans, including picking, sorting and moving packages. Now, Amazon plans to make human labor less necessary in its facilities by replacing more than half a million jobs with robots, The New York Times reports.Don't miss any of our unbiased tech content and lab-based reviews. Add CNET as a preferred Google source.Internal Amazon documents suggest that the company is looking into building and using m ...