Maybe it's a big nothing, and by "teasing" the voters, they can pump up Romney.
What's the point in holding it if it's real dirt? Even if Newt won SC and the story turned out to be horrible, Romney would just steamroll him the rest of the way
...on the other hand, if Newt drops too now, Gingrich's followers would go 98% to Santorum, and with Perry faltering.......
Hmmmm....