I'm actually really surprised by the number one most aggressive dog breed. I know a lot of people who own them and they've all been super nice. I've said it once and I'll say it again, it isn't necessarily the dog breed, it's the owners. I wish people who are trying to pass ridiculous breed specific legislation would do some research first. Sheesh!
http://weblogs.baltimoresun.com/features/mutts/blog/2008/07/the_most_aggressive_dog_breeds.html