By the year 2050, cops and robbers won’t look anything like it did in the past. Host Joe Penna talks to designers who’ve created a robotic security guard. He’ll work with a Harvard scientist who has developed a softball sized set of eyes and ears that allow crime fighters to see danger long before it can hurt them. And polygraphs could become a thing of the past if we can scan brain waves to see if people are telling the truth, or not.