Major League Baseball announced plans yesterday to expand instant replay.
Starting in 2014, there will be a challenge system that allows team managers to ask for replay reviews.
Commissioner Bud Selig says it's a "historic day," but some are worried that eliminating human error will compromise the game.
- Bob Nightengale, baseball columnist for USA Today. He tweets @BNightengale.
This segment aired on August 16, 2013.