Should technology replace the human referee or umpire?

Baseball officials have vowed not to expand the current replay system, but that will be a difficult promise to keep. If video can help an ump determine whether a ball went over the fence, why can't it help with every other call a baseball umpire has to make? That's the lure of video"it promises a measure of certainty in an otherwise uncertain endeavor. Place enough high-speed, high-resolution cameras at enough points around the field of play and you'll eventually get at the absolute truth of any play, the thinking goes. The trouble is, technology can introduce as much uncertainty as it solves.