Cover Story: Where attack ads come from

CHARLOTTE, NC (WBTV) - It's just two weeks until the midterm elections and it's getting nastier by the minute.

You've seen the TV ads come at you left and right - attacking one candidate or another.

But many of them aren't paid for by the candidates, instead organizations you've never heard of.

Who's footing the bill?

PrimeTime's Jeff Atkinson has look in our Cover Story.