Oh great...attempts by sociopaths to breed larger and larger killing machines has paid off...meet the 174 pound pit bull.
This psychotic thinking has also led to attempts to bring back rare aggressive breeds like the Pakistani Mastiff. Just what the world needs: a naturally aggressive 200 pound dog which even its owner has a hard time controlling. Also, the resurgence of fighting breeds like the Gull Dong, bandog, presa canario, tibetan mastiff, etc. are further examples.