Alongside the CBS News investigative unit, Major visited Dekalb County, Georgia, recently to look at why there has been a sharp increase in the number of voter registration challenges since the last election. Citizens can now legally file an unlimited number of challenges in their own county if they believe there is an error in the voter rolls. Proponents of the practice argue it will help make the rolls more accurate. Critics fear it could lead to legitimate voters being struck from the rolls. In a state as closely contested as Georgia, every vote could decide the next election.