Dog poop DNA test catches unclean owner

Pet waste is a big problem from big cities to apartment buildings.

Many dog owners blatantly ignore signs that restrict your dog or pick up after your pet.

Now there's a unique way to track down dog owners who refuse to pick up their dogs after they poop.

A DNA lab in Knoxville, Tennessee, specializes in dog feces.

The lab processes one of 18,000 samples a month.