Pit bulls myths: 
Fear vs.fact
Pit bull bite force: How limited or no fact checking perpetuates myths as facts
Nonsense claims
The Buffalo News – ”Battle against dogfighting brings rescue of 25 pit bulls”
October 09, 2009
“These pit bulls, animal control officers said, are trained to grab with their teeth, which curl inward, and not let go.”
National Canine Research Council