Last night's 60 Minutes, the venerable CBS TV news magazine, featured a story which really got me thinking. In short, it was all about the use of robots in manufacturing these days. The segment showed small automated machines, about the size of a vacuum cleaner filling orders in a huge warehouse. The little creatures are so adept they can crawl under large shelving units and pick up stacks of merchandise in neatly stores crates and deliver them to shipping stations. No human labor involved. Of course that means greater profit and greater productivity for management. It means, too, fewer workers needed.