Another pit bull mauling

This time a seven year old child survived an attack by a pit bull mix. When was the last time a kid just walking down the street got attacked by a chihuahua? or for that matter a Labrador retriever? This is on video. I wish we had a better angle so we could know what transpired earlier.
In any case, the dog should be put down. My money says they will rehome it instead of doing what is right.